org.apache.jackrabbit.core.query.qom
Class JoinImpl

java.lang.Object
  org.apache.jackrabbit.core.query.qom.AbstractQOMNode
      org.apache.jackrabbit.core.query.qom.SourceImpl
          org.apache.jackrabbit.core.query.qom.JoinImpl

All Implemented Interfaces:

Join, Source

public class JoinImpl
extends SourceImpl
implements Join

JoinImpl...

Field Summary

Fields inherited from class org.apache.jackrabbit.core.query.qom.AbstractQOMNode

resolver

Method Summary

Object	accept(QOMTreeVisitor visitor, 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.
int	getJoinType() Gets the join type.
Source	getLeft() Gets the left node-tuple source.
Source	getRight() Gets the right node-tuple source.

Methods inherited from class org.apache.jackrabbit.core.query.qom.AbstractQOMNode

getJCRName, getJCRPath

Methods inherited from class java.lang.Object

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

Method Detail

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 int getJoinType()

Gets the join type.

Specified by:

getJoinType in interface Join

Returns:

either

• QueryObjectModelConstants.JOIN_TYPE_INNER,
• QueryObjectModelConstants.JOIN_TYPE_LEFT_OUTER,
• QueryObjectModelConstants.JOIN_TYPE_RIGHT_OUTER

getJoinCondition

public JoinCondition getJoinCondition()

Gets the join condition.

Specified by:

getJoinCondition in interface Join

Returns:

the join condition; non-null

accept

public Object accept(QOMTreeVisitor visitor,
                     Object data)
              throws 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:

Exception