org.modeshape.graph.query.model
Class Join

java.lang.Object
  org.modeshape.graph.query.model.Join

All Implemented Interfaces:

Serializable, LanguageObject, Source, Visitable

Direct Known Subclasses:

JcrJoin

@Immutable
public class Join
extends Object
implements Source

See Also:

Serialized Form

Constructor Summary

Join(Source left, JoinType type, Source right, JoinCondition joinCondition)
Create a join of the left and right sources, using the supplied join condition.

Method Summary

void	accept(Visitor visitor) Accept the supplied visitor, which should call back to the visitor to complete the double-dispatch operation.
boolean	equals(Object obj)
int	hashCode()
JoinCondition	joinCondition() Get the join condition
Source	left() Get the source that represents the left-hand-side of the join.
Source	right() Get the source that represents the right-hand-side of the join.
String	toString()
JoinType	type() Get the type of join.

Methods inherited from class java.lang.Object

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

Constructor Detail

Join

public Join(Source left,
            JoinType type,
            Source right,
            JoinCondition joinCondition)

Create a join of the left and right sources, using the supplied join condition. The outputs of the left and right sources are expected to be equivalent.

Parameters:

left - the left source being joined

type - the type of join

right - the right source being joined

joinCondition - the join condition

Method Detail

left

public Source left()

Get the source that represents the left-hand-side of the join.

Returns:

the left-side source; never null

right

public Source right()

Get the source that represents the right-hand-side of the join.

Returns:

the right-side source; never null

type

public final JoinType type()

Get the type of join.

Returns:

the join type; never null

joinCondition

public JoinCondition joinCondition()

Get the join condition

Returns:

the join condition; never null

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

See Also:

Object.hashCode()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

accept

public void accept(Visitor visitor)

Accept the supplied visitor, which should call back to the visitor to complete the double-dispatch operation.

Specified by:

accept in interface Visitable

Parameters:

visitor - the visitor; never null

See Also:

Visitable.accept(org.modeshape.graph.query.model.Visitor)