org.apache.jackrabbit.spi.commons.query

Class AndQueryNode

java.lang.Object

org.apache.jackrabbit.spi.commons.query.QueryNode

org.apache.jackrabbit.spi.commons.query.NAryQueryNode<QueryNode>

org.apache.jackrabbit.spi.commons.query.AndQueryNode

public class AndQueryNode
extends NAryQueryNode<QueryNode>

Implements a query node that defines an AND operation between arbitrary other QueryNodes.

Field Summary

Fields inherited from class org.apache.jackrabbit.spi.commons.query.QueryNode

TYPE_AND, TYPE_DEREF, TYPE_EXACT, TYPE_LOCATION, TYPE_NODETYPE, TYPE_NOT, TYPE_OR, TYPE_ORDER, TYPE_PATH, TYPE_PROP_FUNCTION, TYPE_RELATION, TYPE_ROOT, TYPE_TEXTSEARCH

Method Summary

Modifier and Type	Method and Description
java.lang.Object	accept(QueryNodeVisitor visitor, java.lang.Object data) This method can return null to indicate that this AndQueryNode does not contain any operands.
boolean	equals(java.lang.Object obj) Returns true if obj is the same type of QueryNode as this node and is equal to this node.
int	getType() Returns the type of this node.

Methods inherited from class org.apache.jackrabbit.spi.commons.query.NAryQueryNode

acceptOperands, addOperand, getNumOperands, getOperands, needsSystemTree, removeOperand

Methods inherited from class org.apache.jackrabbit.spi.commons.query.QueryNode

dump, getParent

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

accept

public java.lang.Object accept(QueryNodeVisitor visitor,
                               java.lang.Object data)
                        throws RepositoryException

This method can return null to indicate that this AndQueryNode does not contain any operands. Accepts a QueryNodeVisitor and calls the appropriate visit method on the visitor depending on the concrete implementation of this QueryNode.

Specified by:

accept in class QueryNode

Parameters:

visitor - the visitor to call back.

data - arbitrary data for the visitor.

Returns:

the return value of the visitor.visit() call.

Throws:

RepositoryException

getType

public int getType()

Returns the type of this node.

Specified by:

getType in class QueryNode

Returns:

the type of this node.

equals

public boolean equals(java.lang.Object obj)

Returns true if obj is the same type of QueryNode as this node and is equal to this node.

Overrides:

equals in class NAryQueryNode<QueryNode>

Parameters:

obj - the reference object with which to compare.

Returns:

true if obj is equal to this; false otherwise.