Package org.apache.calcite.sql.fun

Class SqlPosixRegexOperator

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlBinaryOperator

org.apache.calcite.sql.fun.SqlPosixRegexOperator

public class SqlPosixRegexOperator
extends SqlBinaryOperator

An operator describing the ~ operator.

Syntax: src-value [!] ~ [*] pattern-value

Field Summary

Fields inherited from class org.apache.calcite.sql.SqlOperator

kind, MDX_PRECEDENCE, NL

Method Summary

Modifier and Type	Method	Description
boolean	checkOperandTypes(SqlCallBinding callBinding, boolean throwOnFailure)	Checks that the operand values in a SqlCall to this operator are valid.
SqlOperandCountRange	getOperandCountRange()	Returns a constraint on the number of operands expected by this operator.
boolean	isCaseSensitive()	Returns whether this operator matches the case of its operands.
boolean	isNegated()	Returns whether this is 'NOT' variant of an operator.
SqlOperator	not()	Returns the operator that is the logical inverse of this operator.
void	unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec)	Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.

Methods inherited from class org.apache.calcite.sql.SqlBinaryOperator

adjustType, deriveType, getMonotonicity, getSignatureTemplate, getSyntax, reverse, validRexOperands

Methods inherited from class org.apache.calcite.sql.SqlOperator

acceptCall, acceptCall, allowsFraming, argumentMustBeScalar, checkOperandCount, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, createCall, createCall, createCall, deriveOperandType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getName, getNameAsId, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSqlCallFactory, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateCall, validateOperands

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

not

public SqlOperator not()

Description copied from class: SqlOperator

Returns the operator that is the logical inverse of this operator.

For example, SqlStdOperatorTable.LIKE.not() returns SqlStdOperatorTable.NOT_LIKE, and vice versa.

By default, returns null, which means there is no inverse operator.

Overrides:

not in class SqlOperator

See Also:

• SqlOperator.reverse()

getOperandCountRange

public SqlOperandCountRange getOperandCountRange()

Description copied from class: SqlOperator

Returns a constraint on the number of operands expected by this operator. Subclasses may override this method; when they don't, the range is derived from the SqlOperandTypeChecker associated with this operator.

Overrides:

getOperandCountRange in class SqlOperator

Returns:

acceptable range

checkOperandTypes

public boolean checkOperandTypes(SqlCallBinding callBinding,
 boolean throwOnFailure)

Description copied from class: SqlOperator

Checks that the operand values in a SqlCall to this operator are valid. Subclasses must either override this method or supply an instance of SqlOperandTypeChecker to the constructor.

Overrides:

checkOperandTypes in class SqlOperator

Parameters:

callBinding - description of call

throwOnFailure - whether to throw an exception if check fails (otherwise returns false in that case)

Returns:

whether check succeeded

unparse

public void unparse(SqlWriter writer,
 SqlCall call,
 int leftPrec,
 int rightPrec)

Description copied from class: SqlOperator

Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.

The default implementation of this method delegates to SqlSyntax.unparse(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlOperator, org.apache.calcite.sql.SqlCall, int, int).

Overrides:

unparse in class SqlOperator

isCaseSensitive

public boolean isCaseSensitive()

Returns whether this operator matches the case of its operands.

Returns:

whether this operator matches the case of its operands

isNegated

public boolean isNegated()

Returns whether this is 'NOT' variant of an operator.

See Also:

• not()