Package org.apache.calcite.linq4j
Class QueryableRecorder<T>
java.lang.Object
org.apache.calcite.linq4j.QueryableRecorder<T>
- Type Parameters:
T
- Element type
- All Implemented Interfaces:
QueryableFactory<T>
Implementation of
QueryableFactory
that records each event
and returns an object that can replay the event when you call its
QueryableDefaults.ReplayableQueryable.replay(QueryableFactory)
method.-
Constructor Summary
-
Method Summary
Modifier and TypeMethodDescription@Nullable T
Applies an accumulator function over a sequence.<TAccumulate>
TAccumulateaggregate
(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate, T, TAccumulate>> func) Applies an accumulator function over a sequence.<TAccumulate,
TResult>
TResultaggregate
(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate, T, TAccumulate>> func, FunctionExpression<Function1<TAccumulate, TResult>> selector) Applies an accumulator function over a sequence.boolean
all
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Determines whether all the elements of a sequence satisfy a condition.boolean
Determines whether a sequence contains any elements.boolean
any
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Determines whether any element of a sequence satisfies a condition.averageBigDecimal
(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector) Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.double
averageDouble
(Queryable<T> source, FunctionExpression<DoubleFunction1<T>> selector) Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.float
averageFloat
(Queryable<T> source, FunctionExpression<FloatFunction1<T>> selector) Computes the average of a sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.int
averageInteger
(Queryable<T> source, FunctionExpression<IntegerFunction1<T>> selector) Computes the average of a sequence of int values that is obtained by invoking a projection function on each element of the input sequence.long
averageLong
(Queryable<T> source, FunctionExpression<LongFunction1<T>> selector) Computes the average of a sequence of long values that is obtained by invoking a projection function on each element of the input sequence.averageNullableBigDecimal
(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector) Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.averageNullableDouble
(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector) Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.averageNullableFloat
(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector) Computes the average of a sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.averageNullableInteger
(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector) Computes the average of a sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.averageNullableLong
(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector) Computes the average of a sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.<T2> Queryable<T2>
concat
(Queryable<T> source, Enumerable<T> source2) Concatenates two sequences.boolean
Determines whether a sequence contains a specified element by using the default equality comparer.boolean
Determines whether a sequence contains a specified element by using a specifiedEqualityComparer<T>
.int
Returns the number of elements in a sequence.int
count
(Queryable<T> source, FunctionExpression<Predicate1<T>> func) Returns the number of elements in the specified sequence that satisfies a condition.defaultIfEmpty
(Queryable<T> source) Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.defaultIfEmpty
(Queryable<T> source, @PolyNull T value) Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.Returns distinct elements from a sequence by using the default equality comparer to compare values.distinct
(Queryable<T> source, EqualityComparer<T> comparer) Returns distinct elements from a sequence by using a specifiedEqualityComparer<T>
to compare values.Returns the element at a specified index in a sequence.elementAtOrDefault
(Queryable<T> source, int index) Returns the element at a specified index in a sequence or a default value if the index is out of range.except
(Queryable<T> source, Enumerable<T> enumerable) Produces the set difference of two sequences by using the default equality comparer to compare values, eliminate duplicates.except
(Queryable<T> source, Enumerable<T> enumerable, boolean all) Produces the set difference of two sequences by using the default equality comparer to compare values, usingall
to indicate whether to eliminate duplicates.except
(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Produces the set difference of two sequences by using the specifiedEqualityComparer<T>
to compare values, eliminate duplicates.except
(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer, boolean all) Produces the set difference of two sequences by using the specifiedEqualityComparer<T>
to compare values, usingall
to indicate whether to eliminate duplicates.Returns the first element of a sequence.first
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the first element of a sequence that satisfies a specified condition.@Nullable T
firstOrDefault
(Queryable<T> source) Returns the first element of a sequence, or a default value if the sequence contains no elements.@Nullable T
firstOrDefault
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.Groups the elements of a sequence according to a specified key selector function.groupBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.groupBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector) Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.groupBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence and projects the elements for each group by using a specified function.<TKey,
TElement, TResult>
Queryable<TResult>groupBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> resultSelector) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.<TKey,
TElement, TResult>
Queryable<TResult>groupBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.<TKey,
TResult>
Queryable<TResult>groupByK
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function2<TKey, Enumerable<T>, TResult>> resultSelector) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.<TKey,
TResult>
Queryable<TResult>groupByK
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function2<TKey, Enumerable<T>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.<TInner,
TKey, TResult>
Queryable<TResult>groupJoin
(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, Enumerable<TInner>, TResult>> resultSelector) Correlates the elements of two sequences based on key equality and groups the results.<TInner,
TKey, TResult>
Queryable<TResult>groupJoin
(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, Enumerable<TInner>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Correlates the elements of two sequences based on key equality and groups the results.static <T> QueryableRecorder<T>
instance()
intersect
(Queryable<T> source, Enumerable<T> enumerable) Produces the set intersection of two sequences by using the default equality comparer to compare values, eliminate duplicates.intersect
(Queryable<T> source, Enumerable<T> enumerable, boolean all) Produces the set intersection of two sequences by using the default equality comparer to compare values, usingall
to indicate whether to eliminate duplicates.intersect
(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Produces the set intersection of two sequences by using the specified EqualityComparer to compare values, eliminate duplicates.intersect
(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer, boolean all) Produces the set intersection of two sequences by using the specified EqualityComparer to compare values, usingall
to indicate whether to eliminate duplicates.<TInner,
TKey, TResult>
Queryable<TResult>join
(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, TInner, TResult>> resultSelector) Correlates the elements of two sequences based on matching keys.<TInner,
TKey, TResult>
Queryable<TResult>join
(Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, TInner, TResult>> resultSelector, EqualityComparer<TKey> comparer) Correlates the elements of two sequences based on matching keys.Returns the last element in a sequence.last
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the last element of a sequence that satisfies a specified condition.lastOrDefault
(Queryable<T> source) Returns the last element in a sequence, or a default value if the sequence contains no elements.lastOrDefault
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.long
Returns an long that represents the total number of elements in a sequence.long
longCount
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns an long that represents the number of elements in a sequence that satisfy a condition.Returns the maximum value in a genericIQueryable<T>
.<TResult extends Comparable<TResult>>
TResultInvokes a projection function on each element of a genericIQueryable<T>
and returns the maximum resulting value.Returns the minimum value in a genericIQueryable<T>
.<TResult extends Comparable<TResult>>
TResultInvokes a projection function on each element of a genericIQueryable<T>
and returns the minimum resulting value.<TResult> Queryable<TResult>
Filters the elements of an IQueryable based on a specified type.<TKey extends Comparable>
OrderedQueryable<T>Sorts the elements of a sequence in ascending order according to a key.<TKey> OrderedQueryable<T>
orderBy
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) Sorts the elements of a sequence in ascending order by using a specified comparer.<TKey extends Comparable>
OrderedQueryable<T>orderByDescending
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) Sorts the elements of a sequence in descending order according to a key.<TKey> OrderedQueryable<T>
orderByDescending
(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) Sorts the elements of a sequence in descending order by using a specified comparer.Inverts the order of the elements in a sequence.<TResult> Queryable<TResult>
Projects each element of a sequence into a new form.<TResult> Queryable<TResult>
selectMany
(Queryable<T> source, FunctionExpression<Function1<T, Enumerable<TResult>>> selector) Projects each element of a sequence to anEnumerable<T>
and combines the resulting sequences into one sequence.<TCollection,
TResult>
Queryable<TResult>selectMany
(Queryable<T> source, FunctionExpression<Function2<T, Integer, Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T, TCollection, TResult>> resultSelector) Projects each element of a sequence to anEnumerable<T>
that incorporates the index of the source element that produced it.<TCollection,
TResult>
Queryable<TResult>selectManyN
(Queryable<T> source, FunctionExpression<Function1<T, Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T, TCollection, TResult>> resultSelector) Projects each element of a sequence to anEnumerable<T>
and invokes a result selector function on each element therein.<TResult> Queryable<TResult>
selectManyN
(Queryable<T> source, FunctionExpression<Function2<T, Integer, Enumerable<TResult>>> selector) Projects each element of a sequence to anEnumerable<T>
and combines the resulting sequences into one sequence.<TResult> Queryable<TResult>
Projects each element of a sequence into a new form by incorporating the element's index.boolean
sequenceEqual
(Queryable<T> source, Enumerable<T> enumerable) Determines whether two sequences are equal by using the default equality comparer to compare elements.boolean
sequenceEqual
(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Determines whether two sequences are equal by using a specified EqualityComparer to compare elements.Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.single
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.singleOrDefault
(Queryable<T> source) Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.singleOrDefault
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.Bypasses a specified number of elements in a sequence and then returns the remaining elements.skipWhile
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.skipWhileN
(Queryable<T> source, FunctionExpression<Predicate2<T, Integer>> predicate) Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.sumBigDecimal
(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector) Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.double
sumDouble
(Queryable<T> source, FunctionExpression<DoubleFunction1<T>> selector) Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.float
sumFloat
(Queryable<T> source, FunctionExpression<FloatFunction1<T>> selector) Computes the sum of the sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.int
sumInteger
(Queryable<T> source, FunctionExpression<IntegerFunction1<T>> selector) Computes the sum of the sequence of int values that is obtained by invoking a projection function on each element of the input sequence.long
sumLong
(Queryable<T> source, FunctionExpression<LongFunction1<T>> selector) Computes the sum of the sequence of long values that is obtained by invoking a projection function on each element of the input sequence.sumNullableBigDecimal
(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector) Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.sumNullableDouble
(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector) Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.sumNullableFloat
(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector) Computes the sum of the sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.sumNullableInteger
(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector) Computes the sum of the sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.sumNullableLong
(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector) Computes the sum of the sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.Returns a specified number of contiguous elements from the start of a sequence.takeWhile
(Queryable<T> source, FunctionExpression<Predicate1<T>> predicate) Returns elements from a sequence as long as a specified condition is true.takeWhileN
(Queryable<T> source, FunctionExpression<Predicate2<T, Integer>> predicate) Returns elements from a sequence as long as a specified condition is true.<TKey extends Comparable<TKey>>
OrderedQueryable<T>thenBy
(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) <TKey> OrderedQueryable<T>
thenBy
(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) <TKey extends Comparable<TKey>>
OrderedQueryable<T>thenByDescending
(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) <TKey> OrderedQueryable<T>
thenByDescending
(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) union
(Queryable<T> source, Enumerable<T> source1) Produces the set union of two sequences by using the default equality comparer.union
(Queryable<T> source, Enumerable<T> source1, EqualityComparer<T> comparer) Produces the set union of two sequences by using a specifiedEqualityComparer<T>
.where
(Queryable<T> source, FunctionExpression<? extends Predicate1<T>> predicate) Filters a sequence of values based on a predicate.whereN
(Queryable<T> source, FunctionExpression<? extends Predicate2<T, Integer>> predicate) Filters a sequence of values based on a predicate.<T1,
TResult>
Queryable<TResult>zip
(Queryable<T> source, Enumerable<T1> source1, FunctionExpression<Function2<T, T1, TResult>> resultSelector) Merges two sequences by using the specified predicate function.
-
Constructor Details
-
QueryableRecorder
public QueryableRecorder()
-
-
Method Details
-
instance
-
aggregate
public @Nullable T aggregate(Queryable<T> source, FunctionExpression<Function2<@Nullable T, T, T>> func) Description copied from interface:QueryableFactory
Applies an accumulator function over a sequence.- Specified by:
aggregate
in interfaceQueryableFactory<T>
-
aggregate
public <TAccumulate> TAccumulate aggregate(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate, T, TAccumulate>> func) Description copied from interface:QueryableFactory
Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.- Specified by:
aggregate
in interfaceQueryableFactory<T>
-
aggregate
public <TAccumulate,TResult> TResult aggregate(Queryable<T> source, TAccumulate seed, FunctionExpression<Function2<TAccumulate, T, TAccumulate>> func, FunctionExpression<Function1<TAccumulate, TResult>> selector) Description copied from interface:QueryableFactory
Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.- Specified by:
aggregate
in interfaceQueryableFactory<T>
-
all
Description copied from interface:QueryableFactory
Determines whether all the elements of a sequence satisfy a condition.- Specified by:
all
in interfaceQueryableFactory<T>
-
any
Description copied from interface:QueryableFactory
Determines whether a sequence contains any elements.- Specified by:
any
in interfaceQueryableFactory<T>
-
any
Description copied from interface:QueryableFactory
Determines whether any element of a sequence satisfies a condition.- Specified by:
any
in interfaceQueryableFactory<T>
-
averageBigDecimal
public BigDecimal averageBigDecimal(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageBigDecimal
in interfaceQueryableFactory<T>
-
averageNullableBigDecimal
public BigDecimal averageNullableBigDecimal(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageNullableBigDecimal
in interfaceQueryableFactory<T>
-
averageDouble
Description copied from interface:QueryableFactory
Computes the average of a sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageDouble
in interfaceQueryableFactory<T>
-
averageNullableDouble
public Double averageNullableDouble(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageNullableDouble
in interfaceQueryableFactory<T>
-
averageInteger
Description copied from interface:QueryableFactory
Computes the average of a sequence of int values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageInteger
in interfaceQueryableFactory<T>
-
averageNullableInteger
public Integer averageNullableInteger(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageNullableInteger
in interfaceQueryableFactory<T>
-
averageFloat
Description copied from interface:QueryableFactory
Computes the average of a sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageFloat
in interfaceQueryableFactory<T>
-
averageNullableFloat
public Float averageNullableFloat(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageNullableFloat
in interfaceQueryableFactory<T>
-
averageLong
Description copied from interface:QueryableFactory
Computes the average of a sequence of long values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageLong
in interfaceQueryableFactory<T>
-
averageNullableLong
public Long averageNullableLong(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the average of a sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
averageNullableLong
in interfaceQueryableFactory<T>
-
cast
- Specified by:
cast
in interfaceQueryableFactory<T>
-
concat
Description copied from interface:QueryableFactory
Concatenates two sequences.- Specified by:
concat
in interfaceQueryableFactory<T>
-
contains
Description copied from interface:QueryableFactory
Determines whether a sequence contains a specified element by using the default equality comparer.- Specified by:
contains
in interfaceQueryableFactory<T>
-
contains
Description copied from interface:QueryableFactory
Determines whether a sequence contains a specified element by using a specifiedEqualityComparer<T>
.- Specified by:
contains
in interfaceQueryableFactory<T>
-
count
Description copied from interface:QueryableFactory
Returns the number of elements in a sequence.- Specified by:
count
in interfaceQueryableFactory<T>
-
count
Description copied from interface:QueryableFactory
Returns the number of elements in the specified sequence that satisfies a condition.- Specified by:
count
in interfaceQueryableFactory<T>
-
defaultIfEmpty
Description copied from interface:QueryableFactory
Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.- Specified by:
defaultIfEmpty
in interfaceQueryableFactory<T>
-
defaultIfEmpty
Description copied from interface:QueryableFactory
Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.If
value
is not null, the result is never null.- Specified by:
defaultIfEmpty
in interfaceQueryableFactory<T>
-
distinct
Description copied from interface:QueryableFactory
Returns distinct elements from a sequence by using the default equality comparer to compare values.- Specified by:
distinct
in interfaceQueryableFactory<T>
-
distinct
Description copied from interface:QueryableFactory
Returns distinct elements from a sequence by using a specifiedEqualityComparer<T>
to compare values.- Specified by:
distinct
in interfaceQueryableFactory<T>
-
elementAt
Description copied from interface:QueryableFactory
Returns the element at a specified index in a sequence.- Specified by:
elementAt
in interfaceQueryableFactory<T>
-
elementAtOrDefault
Description copied from interface:QueryableFactory
Returns the element at a specified index in a sequence or a default value if the index is out of range.- Specified by:
elementAtOrDefault
in interfaceQueryableFactory<T>
-
except
Description copied from interface:QueryableFactory
Produces the set difference of two sequences by using the default equality comparer to compare values, eliminate duplicates. (Defined by Queryable.)- Specified by:
except
in interfaceQueryableFactory<T>
-
except
Description copied from interface:QueryableFactory
Produces the set difference of two sequences by using the default equality comparer to compare values, usingall
to indicate whether to eliminate duplicates. (Defined by Queryable.)- Specified by:
except
in interfaceQueryableFactory<T>
-
except
public Queryable<T> except(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Description copied from interface:QueryableFactory
Produces the set difference of two sequences by using the specifiedEqualityComparer<T>
to compare values, eliminate duplicates.- Specified by:
except
in interfaceQueryableFactory<T>
-
except
public Queryable<T> except(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer, boolean all) Description copied from interface:QueryableFactory
Produces the set difference of two sequences by using the specifiedEqualityComparer<T>
to compare values, usingall
to indicate whether to eliminate duplicates.- Specified by:
except
in interfaceQueryableFactory<T>
-
first
Description copied from interface:QueryableFactory
Returns the first element of a sequence. (Defined by Queryable.)- Specified by:
first
in interfaceQueryableFactory<T>
-
first
Description copied from interface:QueryableFactory
Returns the first element of a sequence that satisfies a specified condition.- Specified by:
first
in interfaceQueryableFactory<T>
-
firstOrDefault
Description copied from interface:QueryableFactory
Returns the first element of a sequence, or a default value if the sequence contains no elements.- Specified by:
firstOrDefault
in interfaceQueryableFactory<T>
-
firstOrDefault
Description copied from interface:QueryableFactory
Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found.- Specified by:
firstOrDefault
in interfaceQueryableFactory<T>
-
groupBy
public <TKey> Queryable<Grouping<TKey,T>> groupBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupBy
public <TKey> Queryable<Grouping<TKey,T>> groupBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupBy
public <TKey,TElement> Queryable<Grouping<TKey,TElement>> groupBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupBy
public <TKey,TElement> Queryable<Grouping<TKey,TElement>> groupBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Groups the elements of a sequence and projects the elements for each group by using a specified function. Key values are compared by using a specified comparer.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupByK
public <TKey,TResult> Queryable<TResult> groupByK(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function2<TKey, Enumerable<T>, TResult>> resultSelector) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.- Specified by:
groupByK
in interfaceQueryableFactory<T>
-
groupByK
public <TKey,TResult> Queryable<TResult> groupByK(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function2<TKey, Enumerable<T>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer.- Specified by:
groupByK
in interfaceQueryableFactory<T>
-
groupBy
public <TKey,TElement, Queryable<TResult> groupByTResult> (Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> resultSelector) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupBy
public <TKey,TElement, Queryable<TResult> groupByTResult> (Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, FunctionExpression<Function1<T, TElement>> elementSelector, FunctionExpression<Function2<TKey, Enumerable<TElement>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer and the elements of each group are projected by using a specified function.- Specified by:
groupBy
in interfaceQueryableFactory<T>
-
groupJoin
public <TInner,TKey, Queryable<TResult> groupJoinTResult> (Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, Enumerable<TInner>, TResult>> resultSelector) Description copied from interface:QueryableFactory
Correlates the elements of two sequences based on key equality and groups the results. The default equality comparer is used to compare keys.- Specified by:
groupJoin
in interfaceQueryableFactory<T>
-
groupJoin
public <TInner,TKey, Queryable<TResult> groupJoinTResult> (Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, Enumerable<TInner>, TResult>> resultSelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Correlates the elements of two sequences based on key equality and groups the results. A specified EqualityComparer is used to compare keys.- Specified by:
groupJoin
in interfaceQueryableFactory<T>
-
intersect
Description copied from interface:QueryableFactory
Produces the set intersection of two sequences by using the default equality comparer to compare values, eliminate duplicates. (Defined by Queryable.)- Specified by:
intersect
in interfaceQueryableFactory<T>
-
intersect
Description copied from interface:QueryableFactory
Produces the set intersection of two sequences by using the default equality comparer to compare values, usingall
to indicate whether to eliminate duplicates. (Defined by Queryable.)- Specified by:
intersect
in interfaceQueryableFactory<T>
-
intersect
public Queryable<T> intersect(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Description copied from interface:QueryableFactory
Produces the set intersection of two sequences by using the specified EqualityComparer to compare values, eliminate duplicates.- Specified by:
intersect
in interfaceQueryableFactory<T>
-
intersect
public Queryable<T> intersect(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer, boolean all) Description copied from interface:QueryableFactory
Produces the set intersection of two sequences by using the specified EqualityComparer to compare values, usingall
to indicate whether to eliminate duplicates.- Specified by:
intersect
in interfaceQueryableFactory<T>
-
join
public <TInner,TKey, Queryable<TResult> joinTResult> (Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, TInner, TResult>> resultSelector) Description copied from interface:QueryableFactory
Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.- Specified by:
join
in interfaceQueryableFactory<T>
-
join
public <TInner,TKey, Queryable<TResult> joinTResult> (Queryable<T> source, Enumerable<TInner> inner, FunctionExpression<Function1<T, TKey>> outerKeySelector, FunctionExpression<Function1<TInner, TKey>> innerKeySelector, FunctionExpression<Function2<T, TInner, TResult>> resultSelector, EqualityComparer<TKey> comparer) Description copied from interface:QueryableFactory
Correlates the elements of two sequences based on matching keys. A specified EqualityComparer is used to compare keys.- Specified by:
join
in interfaceQueryableFactory<T>
-
last
Description copied from interface:QueryableFactory
Returns the last element in a sequence. (Defined by Queryable.)- Specified by:
last
in interfaceQueryableFactory<T>
-
last
Description copied from interface:QueryableFactory
Returns the last element of a sequence that satisfies a specified condition.- Specified by:
last
in interfaceQueryableFactory<T>
-
lastOrDefault
Description copied from interface:QueryableFactory
Returns the last element in a sequence, or a default value if the sequence contains no elements.- Specified by:
lastOrDefault
in interfaceQueryableFactory<T>
-
lastOrDefault
Description copied from interface:QueryableFactory
Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.- Specified by:
lastOrDefault
in interfaceQueryableFactory<T>
-
longCount
Description copied from interface:QueryableFactory
Returns an long that represents the total number of elements in a sequence.- Specified by:
longCount
in interfaceQueryableFactory<T>
-
longCount
Description copied from interface:QueryableFactory
Returns an long that represents the number of elements in a sequence that satisfy a condition.- Specified by:
longCount
in interfaceQueryableFactory<T>
-
max
Description copied from interface:QueryableFactory
Returns the maximum value in a genericIQueryable<T>
.- Specified by:
max
in interfaceQueryableFactory<T>
-
max
public <TResult extends Comparable<TResult>> TResult max(Queryable<T> source, FunctionExpression<Function1<T, TResult>> selector) Description copied from interface:QueryableFactory
Invokes a projection function on each element of a genericIQueryable<T>
and returns the maximum resulting value.- Specified by:
max
in interfaceQueryableFactory<T>
-
min
Description copied from interface:QueryableFactory
Returns the minimum value in a genericIQueryable<T>
.- Specified by:
min
in interfaceQueryableFactory<T>
-
min
public <TResult extends Comparable<TResult>> TResult min(Queryable<T> source, FunctionExpression<Function1<T, TResult>> selector) Description copied from interface:QueryableFactory
Invokes a projection function on each element of a genericIQueryable<T>
and returns the minimum resulting value.- Specified by:
min
in interfaceQueryableFactory<T>
-
ofType
Description copied from interface:QueryableFactory
Filters the elements of an IQueryable based on a specified type.- Specified by:
ofType
in interfaceQueryableFactory<T>
-
orderBy
public <TKey extends Comparable> OrderedQueryable<T> orderBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) Description copied from interface:QueryableFactory
Sorts the elements of a sequence in ascending order according to a key.- Specified by:
orderBy
in interfaceQueryableFactory<T>
-
orderBy
public <TKey> OrderedQueryable<T> orderBy(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) Description copied from interface:QueryableFactory
Sorts the elements of a sequence in ascending order by using a specified comparer.- Specified by:
orderBy
in interfaceQueryableFactory<T>
-
orderByDescending
public <TKey extends Comparable> OrderedQueryable<T> orderByDescending(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) Description copied from interface:QueryableFactory
Sorts the elements of a sequence in descending order according to a key.- Specified by:
orderByDescending
in interfaceQueryableFactory<T>
-
orderByDescending
public <TKey> OrderedQueryable<T> orderByDescending(Queryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) Description copied from interface:QueryableFactory
Sorts the elements of a sequence in descending order by using a specified comparer.- Specified by:
orderByDescending
in interfaceQueryableFactory<T>
-
reverse
Description copied from interface:QueryableFactory
Inverts the order of the elements in a sequence.- Specified by:
reverse
in interfaceQueryableFactory<T>
-
select
public <TResult> Queryable<TResult> select(Queryable<T> source, FunctionExpression<Function1<T, TResult>> selector) Description copied from interface:QueryableFactory
Projects each element of a sequence into a new form.- Specified by:
select
in interfaceQueryableFactory<T>
-
selectN
public <TResult> Queryable<TResult> selectN(Queryable<T> source, FunctionExpression<Function2<T, Integer, TResult>> selector) Description copied from interface:QueryableFactory
Projects each element of a sequence into a new form by incorporating the element's index.- Specified by:
selectN
in interfaceQueryableFactory<T>
-
selectMany
public <TResult> Queryable<TResult> selectMany(Queryable<T> source, FunctionExpression<Function1<T, Enumerable<TResult>>> selector) Description copied from interface:QueryableFactory
Projects each element of a sequence to anEnumerable<T>
and combines the resulting sequences into one sequence.- Specified by:
selectMany
in interfaceQueryableFactory<T>
-
selectManyN
public <TResult> Queryable<TResult> selectManyN(Queryable<T> source, FunctionExpression<Function2<T, Integer, Enumerable<TResult>>> selector) Description copied from interface:QueryableFactory
Projects each element of a sequence to anEnumerable<T>
and combines the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.- Specified by:
selectManyN
in interfaceQueryableFactory<T>
-
selectMany
public <TCollection,TResult> Queryable<TResult> selectMany(Queryable<T> source, FunctionExpression<Function2<T, Integer, Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T, TCollection, TResult>> resultSelector) Description copied from interface:QueryableFactory
Projects each element of a sequence to anEnumerable<T>
that incorporates the index of the source element that produced it. A result selector function is invoked on each element of each intermediate sequence, and the resulting values are combined into a single, one-dimensional sequence and returned.- Specified by:
selectMany
in interfaceQueryableFactory<T>
-
selectManyN
public <TCollection,TResult> Queryable<TResult> selectManyN(Queryable<T> source, FunctionExpression<Function1<T, Enumerable<TCollection>>> collectionSelector, FunctionExpression<Function2<T, TCollection, TResult>> resultSelector) Description copied from interface:QueryableFactory
Projects each element of a sequence to anEnumerable<T>
and invokes a result selector function on each element therein. The resulting values from each intermediate sequence are combined into a single, one-dimensional sequence and returned.- Specified by:
selectManyN
in interfaceQueryableFactory<T>
-
sequenceEqual
Description copied from interface:QueryableFactory
Determines whether two sequences are equal by using the default equality comparer to compare elements.- Specified by:
sequenceEqual
in interfaceQueryableFactory<T>
-
sequenceEqual
public boolean sequenceEqual(Queryable<T> source, Enumerable<T> enumerable, EqualityComparer<T> comparer) Description copied from interface:QueryableFactory
Determines whether two sequences are equal by using a specified EqualityComparer to compare elements.- Specified by:
sequenceEqual
in interfaceQueryableFactory<T>
-
single
Description copied from interface:QueryableFactory
Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.- Specified by:
single
in interfaceQueryableFactory<T>
-
single
Description copied from interface:QueryableFactory
Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.- Specified by:
single
in interfaceQueryableFactory<T>
-
singleOrDefault
Description copied from interface:QueryableFactory
Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.- Specified by:
singleOrDefault
in interfaceQueryableFactory<T>
-
singleOrDefault
Description copied from interface:QueryableFactory
Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.- Specified by:
singleOrDefault
in interfaceQueryableFactory<T>
-
skip
Description copied from interface:QueryableFactory
Bypasses a specified number of elements in a sequence and then returns the remaining elements.- Specified by:
skip
in interfaceQueryableFactory<T>
-
skipWhile
Description copied from interface:QueryableFactory
Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.- Specified by:
skipWhile
in interfaceQueryableFactory<T>
-
skipWhileN
public Queryable<T> skipWhileN(Queryable<T> source, FunctionExpression<Predicate2<T, Integer>> predicate) Description copied from interface:QueryableFactory
Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.- Specified by:
skipWhileN
in interfaceQueryableFactory<T>
-
sumBigDecimal
public BigDecimal sumBigDecimal(Queryable<T> source, FunctionExpression<BigDecimalFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumBigDecimal
in interfaceQueryableFactory<T>
-
sumNullableBigDecimal
public BigDecimal sumNullableBigDecimal(Queryable<T> source, FunctionExpression<NullableBigDecimalFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumNullableBigDecimal
in interfaceQueryableFactory<T>
-
sumDouble
Description copied from interface:QueryableFactory
Computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumDouble
in interfaceQueryableFactory<T>
-
sumNullableDouble
public Double sumNullableDouble(Queryable<T> source, FunctionExpression<NullableDoubleFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumNullableDouble
in interfaceQueryableFactory<T>
-
sumInteger
Description copied from interface:QueryableFactory
Computes the sum of the sequence of int values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumInteger
in interfaceQueryableFactory<T>
-
sumNullableInteger
public Integer sumNullableInteger(Queryable<T> source, FunctionExpression<NullableIntegerFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of nullable int values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumNullableInteger
in interfaceQueryableFactory<T>
-
sumLong
Description copied from interface:QueryableFactory
Computes the sum of the sequence of long values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumLong
in interfaceQueryableFactory<T>
-
sumNullableLong
public Long sumNullableLong(Queryable<T> source, FunctionExpression<NullableLongFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of nullable long values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumNullableLong
in interfaceQueryableFactory<T>
-
sumFloat
Description copied from interface:QueryableFactory
Computes the sum of the sequence of Float values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumFloat
in interfaceQueryableFactory<T>
-
sumNullableFloat
public Float sumNullableFloat(Queryable<T> source, FunctionExpression<NullableFloatFunction1<T>> selector) Description copied from interface:QueryableFactory
Computes the sum of the sequence of nullable Float values that is obtained by invoking a projection function on each element of the input sequence.- Specified by:
sumNullableFloat
in interfaceQueryableFactory<T>
-
take
Description copied from interface:QueryableFactory
Returns a specified number of contiguous elements from the start of a sequence.- Specified by:
take
in interfaceQueryableFactory<T>
-
takeWhile
Description copied from interface:QueryableFactory
Returns elements from a sequence as long as a specified condition is true.- Specified by:
takeWhile
in interfaceQueryableFactory<T>
-
takeWhileN
public Queryable<T> takeWhileN(Queryable<T> source, FunctionExpression<Predicate2<T, Integer>> predicate) Description copied from interface:QueryableFactory
Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.- Specified by:
takeWhileN
in interfaceQueryableFactory<T>
-
thenBy
public <TKey extends Comparable<TKey>> OrderedQueryable<T> thenBy(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) - Specified by:
thenBy
in interfaceQueryableFactory<T>
-
thenBy
public <TKey> OrderedQueryable<T> thenBy(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) - Specified by:
thenBy
in interfaceQueryableFactory<T>
-
thenByDescending
public <TKey extends Comparable<TKey>> OrderedQueryable<T> thenByDescending(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector) - Specified by:
thenByDescending
in interfaceQueryableFactory<T>
-
thenByDescending
public <TKey> OrderedQueryable<T> thenByDescending(OrderedQueryable<T> source, FunctionExpression<Function1<T, TKey>> keySelector, Comparator<TKey> comparator) - Specified by:
thenByDescending
in interfaceQueryableFactory<T>
-
union
Description copied from interface:QueryableFactory
Produces the set union of two sequences by using the default equality comparer.- Specified by:
union
in interfaceQueryableFactory<T>
-
union
Description copied from interface:QueryableFactory
Produces the set union of two sequences by using a specifiedEqualityComparer<T>
.- Specified by:
union
in interfaceQueryableFactory<T>
-
where
public Queryable<T> where(Queryable<T> source, FunctionExpression<? extends Predicate1<T>> predicate) Description copied from interface:QueryableFactory
Filters a sequence of values based on a predicate.- Specified by:
where
in interfaceQueryableFactory<T>
-
whereN
public Queryable<T> whereN(Queryable<T> source, FunctionExpression<? extends Predicate2<T, Integer>> predicate) Description copied from interface:QueryableFactory
Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.- Specified by:
whereN
in interfaceQueryableFactory<T>
-
zip
public <T1,TResult> Queryable<TResult> zip(Queryable<T> source, Enumerable<T1> source1, FunctionExpression<Function2<T, T1, TResult>> resultSelector) Description copied from interface:QueryableFactory
Merges two sequences by using the specified predicate function.- Specified by:
zip
in interfaceQueryableFactory<T>
-