Package 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.

Field Summary

Fields

Modifier and Type	Field	Description
protected FileSystem	fs	Search index file system, or null

Constructor Summary

Constructors

Constructor	Description
AbstractQueryHandler()

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this QueryHandler and frees resources attached to this handler.
protected abstract void	doInit()	This method must be implemented by concrete sub classes and will be called from init(org.apache.jackrabbit.core.fs.FileSystem, org.apache.jackrabbit.core.query.QueryHandlerContext).
QueryHandlerContext	getContext()	Returns the context for this query handler.
String	getIdleTime()
String	getOnWorkspaceInconsistency()
OnWorkspaceInconsistency	getOnWorkspaceInconsistencyHandler()
String	getQueryClass()
void	init(FileSystem fs, QueryHandlerContext context)	Initializes this query handler by setting all properties in this class with appropriate parameter values.
void	setIdleTime(String idleTime)	Deprecated. This parameter is not supported any more.
void	setOnWorkspaceInconsistency(String name)	Sets the OnWorkspaceInconsistency handler with the given name.
void	setQueryClass(String queryClass)	Sets the name of the query class to use.
void	updateNodes(Iterator<NodeId> remove, Iterator<NodeState> add)	This default implementation calls the individual QueryHandler.deleteNode(org.apache.jackrabbit.core.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, createExecutableQuery, deleteNode, getWeaklyReferringNodes

Field Detail

fs

protected FileSystem fs

Search index file system, or null

Constructor Detail

AbstractQueryHandler

public AbstractQueryHandler()

Method Detail

init

public final void init(FileSystem fs,
                       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:

fs - search index file system, or null

context - the context for this query handler.

Throws:

IOException - if an error occurs during initialization.

close

public void close()
           throws IOException

Description copied from interface: QueryHandler

Closes this QueryHandler and frees resources attached to this handler.

Specified by:

close in interface QueryHandler

Throws:

IOException

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.fs.FileSystem, org.apache.jackrabbit.core.query.QueryHandlerContext).

Throws:

IOException - If an error occurs.

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(Iterator<NodeId> remove,
                        Iterator<NodeState> add)
                 throws RepositoryException,
                        IOException

This default implementation calls the individual QueryHandler.deleteNode(org.apache.jackrabbit.core.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.

getOnWorkspaceInconsistencyHandler

public OnWorkspaceInconsistency getOnWorkspaceInconsistencyHandler()

Returns:

the OnWorkspaceInconsistency handler.

setOnWorkspaceInconsistency

public void setOnWorkspaceInconsistency(String name)

Sets the OnWorkspaceInconsistency handler with the given name. Currently the valid names are:

• fail
• log

Parameters:

name - the name of a OnWorkspaceInconsistency handler.

getOnWorkspaceInconsistency

public String getOnWorkspaceInconsistency()

Returns:

the name of the currently set OnWorkspaceInconsistency.

setQueryClass

public void setQueryClass(String queryClass)

Sets the name of the query class to use.

Parameters:

queryClass - the name of the query class to use.

getQueryClass

public String getQueryClass()

Specified by:

getQueryClass in interface QueryHandler

Returns:

the name of the query class to use.

setIdleTime

public void setIdleTime(String idleTime)

Deprecated.

This parameter is not supported any more. Please use 'maxIdleTime' in the repository configuration.

Sets the query handler idle time.

Parameters:

idleTime - the query handler idle time.

getIdleTime

public String getIdleTime()

Returns:

the query handler idle time.