Package org.apache.jackrabbit.spi.commons.query.qom

Class JoinImpl

java.lang.Object

org.apache.jackrabbit.spi.commons.query.qom.AbstractQOMNode

org.apache.jackrabbit.spi.commons.query.qom.SourceImpl

org.apache.jackrabbit.spi.commons.query.qom.JoinImpl

All Implemented Interfaces:

Join, Source

public class JoinImpl
extends SourceImpl
implements Join

JoinImpl...

Method Summary

Modifier and Type	Method	Description
java.lang.Object	accept(QOMTreeVisitor visitor, java.lang.Object data)	Accepts a visitor and calls the appropriate visit method depending on the type of this QOM node.
JoinCondition	getJoinCondition()	Gets the join condition.
java.lang.String	getJoinType()	Gets the join type.
JoinType	getJoinTypeInstance()
Source	getLeft()	Gets the left node-tuple source.
Source	getRight()	Gets the right node-tuple source.
SelectorImpl[]	getSelectors()
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getJoinTypeInstance

public JoinType getJoinTypeInstance()

getLeft

public Source getLeft()

Gets the left node-tuple source.

Specified by:

getLeft in interface Join

Returns:

the left source; non-null

getRight

public Source getRight()

Gets the right node-tuple source.

Specified by:

getRight in interface Join

Returns:

the right source; non-null

getJoinType

public java.lang.String getJoinType()

Gets the join type.

Specified by:

getJoinType in interface Join

Returns:

either

• QueryObjectModelConstants.JCR_JOIN_TYPE_INNER,
• QueryObjectModelConstants.JCR_JOIN_TYPE_LEFT_OUTER,
• QueryObjectModelConstants.JCR_JOIN_TYPE_RIGHT_OUTER

getJoinCondition

public JoinCondition getJoinCondition()

Gets the join condition.

Specified by:

getJoinCondition in interface Join

Returns:

the join condition; non-null

getSelectors

public SelectorImpl[] getSelectors()

Specified by:

getSelectors in class SourceImpl

Returns:

the selectors that are contained in this source.

accept

public java.lang.Object accept(QOMTreeVisitor visitor,
                               java.lang.Object data)
                        throws java.lang.Exception

Accepts a visitor and calls the appropriate visit method depending on the type of this QOM node.

Specified by:

accept in class AbstractQOMNode

Parameters:

visitor - the visitor.

data - user defined data, which is passed to the visit method.

Throws:

java.lang.Exception

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object