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

java.lang.Object
  org.apache.jackrabbit.core.query.qom.AbstractQOMNode
      org.apache.jackrabbit.core.query.qom.QueryObjectModelTree

public class QueryObjectModelTree
extends AbstractQOMNode

QueryObjectModelTree implements the root node of an object query model tree.

Field Summary

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

resolver

Constructor Summary

QueryObjectModelTree(NamePathResolver resolver, SourceImpl source, ConstraintImpl constraint, OrderingImpl[] orderings, ColumnImpl[] columns)

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.
ColumnImpl[]	getColumns() Gets the columns for this query.
ConstraintImpl	getConstraint() Gets the constraint for this query.
OrderingImpl[]	getOrderings() Gets the orderings for this query.
SourceImpl	getSource() Gets the node-tuple source for this query.

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

Constructor Detail

QueryObjectModelTree

public QueryObjectModelTree(NamePathResolver resolver,
                            SourceImpl source,
                            ConstraintImpl constraint,
                            OrderingImpl[] orderings,
                            ColumnImpl[] columns)
                     throws InvalidQueryException

Throws:

InvalidQueryException

Method Detail

getSource

public SourceImpl getSource()

Gets the node-tuple source for this query.

Returns:

the node-tuple source; non-null

getConstraint

public ConstraintImpl getConstraint()

Gets the constraint for this query.

Returns:

the constraint, or null if none

getOrderings

public OrderingImpl[] getOrderings()

Gets the orderings for this query.

Returns:

an array of zero or more orderings; non-null

getColumns

public ColumnImpl[] getColumns()

Gets the columns for this query.

Returns:

an array of zero or more columns; 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