org.apache.calcite.rel

Class RelReferentialConstraintImpl

java.lang.Object

org.apache.calcite.rel.RelReferentialConstraintImpl

All Implemented Interfaces:

RelReferentialConstraint

public class RelReferentialConstraintImpl
extends Object
implements RelReferentialConstraint

RelOptReferentialConstraint base implementation.

Field Summary

Fields

Modifier and Type	Field and Description
private List<IntPair>	columnPairs
private List<String>	sourceQualifiedName
private List<String>	targetQualifiedName

Constructor Summary

Constructors

Modifier	Constructor and Description
private	RelReferentialConstraintImpl(List<String> sourceQualifiedName, List<String> targetQualifiedName, List<IntPair> columnPairs)

Method Summary

Modifier and Type	Method and Description
List<IntPair>	getColumnPairs() The (source, target) column ordinals.
int	getNumColumns() Returns the number of columns in the keys.
List<String>	getSourceQualifiedName() The qualified name of the referencing table, e.g.
List<String>	getTargetQualifiedName() The qualified name of the referenced table, e.g.
static RelReferentialConstraintImpl	of(List<String> sourceQualifiedName, List<String> targetQualifiedName, List<IntPair> columnPairs)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

sourceQualifiedName

private final List<String> sourceQualifiedName

targetQualifiedName

private final List<String> targetQualifiedName

columnPairs

private final List<IntPair> columnPairs

Constructor Detail

RelReferentialConstraintImpl

private RelReferentialConstraintImpl(List<String> sourceQualifiedName,
                                     List<String> targetQualifiedName,
                                     List<IntPair> columnPairs)

Method Detail

getSourceQualifiedName

public List<String> getSourceQualifiedName()

Description copied from interface: RelReferentialConstraint

The qualified name of the referencing table, e.g. DEPT.

Specified by:

getSourceQualifiedName in interface RelReferentialConstraint

getTargetQualifiedName

public List<String> getTargetQualifiedName()

Description copied from interface: RelReferentialConstraint

The qualified name of the referenced table, e.g. EMP.

Specified by:

getTargetQualifiedName in interface RelReferentialConstraint

getColumnPairs

public List<IntPair> getColumnPairs()

Description copied from interface: RelReferentialConstraint

The (source, target) column ordinals.

Specified by:

getColumnPairs in interface RelReferentialConstraint

getNumColumns

public int getNumColumns()

Description copied from interface: RelReferentialConstraint

Returns the number of columns in the keys.

Specified by:

getNumColumns in interface RelReferentialConstraint

of

public static RelReferentialConstraintImpl of(List<String> sourceQualifiedName,
                                              List<String> targetQualifiedName,
                                              List<IntPair> columnPairs)

toString

public String toString()

Overrides:

toString in class Object