org.apache.jackrabbit.core.query
Class AbstractQueryHandler

java.lang.Object
  org.apache.jackrabbit.core.query.AbstractQueryHandler

All Implemented Interfaces:

QueryHandler

Direct Known Subclasses:

SearchIndex

public abstract class AbstractQueryHandler

extends Object

implements QueryHandler

Implements default behaviour for some methods of QueryHandler.

Constructor Summary

AbstractQueryHandler()

Method Summary

protected abstract void	doInit() This method must be implemented by concrete sub classes and will be called from init(org.apache.jackrabbit.core.query.QueryHandlerContext).
QueryHandlerContext	getContext() Returns the context for this query handler.
void	init(QueryHandlerContext context) Initializes this query handler by setting all properties in this class with appropriate parameter values.
void	updateNodes(NodeIdIterator remove, NodeStateIterator add) This default implementation calls the individual QueryHandler.deleteNode(NodeId) and QueryHandler.addNode(org.apache.jackrabbit.core.state.NodeState) methods for each entry in the iterators.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jackrabbit.core.query.QueryHandler

addNode, close, createExecutableQuery, deleteNode

Constructor Detail

AbstractQueryHandler

public AbstractQueryHandler()

Method Detail

init

public final void init(QueryHandlerContext context)
                throws IOException

Initializes this query handler by setting all properties in this class with appropriate parameter values.

Specified by:

init in interface QueryHandler

Parameters:

context - the context for this query handler.

Throws:

IOException - if an error occurs during initialization.

doInit

protected abstract void doInit()
                        throws IOException

This method must be implemented by concrete sub classes and will be called from init(org.apache.jackrabbit.core.query.QueryHandlerContext).

Throws:

IOException

getContext

public QueryHandlerContext getContext()

Returns the context for this query handler.

Specified by:

getContext in interface QueryHandler

Returns:

the QueryHandlerContext instance for this QueryHandler.

updateNodes

public void updateNodes(NodeIdIterator remove,
                        NodeStateIterator add)
                 throws RepositoryException,
                        IOException

This default implementation calls the individual QueryHandler.deleteNode(NodeId) and QueryHandler.addNode(org.apache.jackrabbit.core.state.NodeState) methods for each entry in the iterators. First the nodes to remove are processed then the nodes to add.

Specified by:

updateNodes in interface QueryHandler

Parameters:

remove - uuids of nodes to remove.

add - NodeStates to add.

Throws:

RepositoryException - if an error occurs while indexing a node.

IOException - if an error occurs while updating the index.