Package org.apache.calcite.prepare

Class Prepare.PreparedResultImpl

java.lang.Object

org.apache.calcite.prepare.Prepare.PreparedResultImpl

All Implemented Interfaces:

Prepare.PreparedResult, Typed

Enclosing class:

Prepare

public abstract static class Prepare.PreparedResultImpl
extends Object
implements Prepare.PreparedResult, Typed

Abstract implementation of Prepare.PreparedResult.

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<RelCollation>	collations
protected final List<? extends @Nullable List<String>>	fieldOrigins
protected final boolean	isDml
protected final RelDataType	parameterRowType
protected final RelNode	rootRel
protected final RelDataType	rowType
protected final @Nullable TableModify.Operation	tableModOp

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PreparedResultImpl(RelDataType rowType, RelDataType parameterRowType, List<? extends @Nullable List<String>> fieldOrigins, List<RelCollation> collations, RelNode rootRel, @Nullable TableModify.Operation tableModOp, boolean isDml)

Method Summary

Modifier and Type	Method	Description
abstract Type	getElementType()	Gets the type of the element(s) that are returned in this collection.
List<? extends @Nullable List<String>>	getFieldOrigins()	Returns a list describing, for each result field, the origin of the field as a 4-element list of (database, schema, table, column).
RelDataType	getParameterRowType()	Returns a record type whose fields are the parameters of this statement.
RelDataType	getPhysicalRowType()	Returns the physical row type of this prepared statement.
RelNode	getRootRel()
@Nullable TableModify.Operation	getTableModOp()	Returns the table modification operation corresponding to this statement if it is a table modification statement; otherwise null.
boolean	isDml()	Returns whether this result is for a DML statement, in which case the result set is one row with one column containing the number of rows affected.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.calcite.prepare.Prepare.PreparedResult

getBindable, getCode

Field Details

rootRel

protected final RelNode rootRel

parameterRowType

protected final RelDataType parameterRowType

rowType

protected final RelDataType rowType

isDml

protected final boolean isDml

tableModOp

protected final @Nullable TableModify.Operation tableModOp

fieldOrigins

protected final List<? extends @Nullable List<String>> fieldOrigins

collations

protected final List<RelCollation> collations

Constructor Details

PreparedResultImpl

protected PreparedResultImpl(RelDataType rowType,
 RelDataType parameterRowType,
 List<? extends @Nullable List<String>> fieldOrigins,
 List<RelCollation> collations,
 RelNode rootRel,
 @Nullable TableModify.Operation tableModOp,
 boolean isDml)

Method Details

isDml

public boolean isDml()

Description copied from interface: Prepare.PreparedResult

Returns whether this result is for a DML statement, in which case the result set is one row with one column containing the number of rows affected.

Specified by:

isDml in interface Prepare.PreparedResult

getTableModOp

public @Nullable TableModify.Operation getTableModOp()

Description copied from interface: Prepare.PreparedResult

Returns the table modification operation corresponding to this statement if it is a table modification statement; otherwise null.

Specified by:

getTableModOp in interface Prepare.PreparedResult

getFieldOrigins

public List<? extends @Nullable List<String>> getFieldOrigins()

Description copied from interface: Prepare.PreparedResult

Returns a list describing, for each result field, the origin of the field as a 4-element list of (database, schema, table, column).

Specified by:

getFieldOrigins in interface Prepare.PreparedResult

getParameterRowType

public RelDataType getParameterRowType()

Description copied from interface: Prepare.PreparedResult

Returns a record type whose fields are the parameters of this statement.

Specified by:

getParameterRowType in interface Prepare.PreparedResult

getPhysicalRowType

public RelDataType getPhysicalRowType()

Returns the physical row type of this prepared statement. May not be identical to the row type returned by the validator; for example, the field names may have been made unique.

getElementType

public abstract Type getElementType()

Description copied from interface: Typed

Gets the type of the element(s) that are returned in this collection.

Specified by:

getElementType in interface Typed

getRootRel

public RelNode getRootRel()