org.jahia.services.query

Class QueryManagerImpl

java.lang.Object

org.jahia.services.query.QueryManagerImpl

All Implemented Interfaces:

javax.jcr.query.QueryManager, QueryManagerWrapper

public class QueryManagerImpl
extends Object
implements QueryManagerWrapper

Implementation of the QueryManager to support multiple providers.

Author:

Thomas Draier

Constructor Summary

Constructors

Constructor and Description
QueryManagerImpl(JCRSessionWrapper session, JCRSessionFactory sessionFactory)

Method Summary

Modifier and Type	Method and Description
QueryWrapper	createDualQuery(String statement, String language, String sqlFallbackStatement) Creates a new query by specifying the query statement in xpath and in SQL2.
QueryWrapper	createQuery(String statement, String language) Creates a new query by specifying the query statement itself and the language in which the query is stated.
javax.jcr.query.qom.QueryObjectModelFactory	getQOMFactory() Returns a QueryObjectModelFactory with which a JCR-JQOM query can be built programmatically.
QueryWrapper	getQuery(javax.jcr.Node node) Retrieves an existing persistent query.
String[]	getSupportedQueryLanguages()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryManagerImpl

public QueryManagerImpl(JCRSessionWrapper session,
                        JCRSessionFactory sessionFactory)

Method Detail

createQuery

public QueryWrapper createQuery(String statement,
                                String language)
                         throws javax.jcr.query.InvalidQueryException,
                                javax.jcr.RepositoryException

Description copied from interface: QueryManagerWrapper

Creates a new query by specifying the query statement itself and the language in which the query is stated. The language must be a string from among those returned by QueryManager.getSupportedQueryLanguages().

Specified by:

createQuery in interface javax.jcr.query.QueryManager

Specified by:

createQuery in interface QueryManagerWrapper

Parameters:

statement - a String

language - a String

Returns:

a Query object

Throws:

javax.jcr.query.InvalidQueryException - if the query statement is syntactically invalid or the specified language is not supported.

javax.jcr.RepositoryException - if another error occurs.

createDualQuery

public QueryWrapper createDualQuery(String statement,
                                    String language,
                                    String sqlFallbackStatement)
                             throws javax.jcr.query.InvalidQueryException,
                                    javax.jcr.RepositoryException

Description copied from interface: QueryManagerWrapper

Creates a new query by specifying the query statement in xpath and in SQL2. XPath will be used against jackrabbit where SQL2 can be used as a fallback statement in other providers, which may not support xpath. QueryManager.getSupportedQueryLanguages().

Specified by:

createDualQuery in interface QueryManagerWrapper

Parameters:

statement - a String

language - a String

sqlFallbackStatement - a String

Returns:

a Query object

Throws:

javax.jcr.query.InvalidQueryException - if the query statement is syntactically invalid or the specified language is not supported.

javax.jcr.RepositoryException - if another error occurs.

getQOMFactory

public javax.jcr.query.qom.QueryObjectModelFactory getQOMFactory()

Description copied from interface: QueryManagerWrapper

Returns a QueryObjectModelFactory with which a JCR-JQOM query can be built programmatically.

Specified by:

getQOMFactory in interface javax.jcr.query.QueryManager

Specified by:

getQOMFactory in interface QueryManagerWrapper

Returns:

a QueryObjectModelFactory object

getQuery

public QueryWrapper getQuery(javax.jcr.Node node)
                      throws javax.jcr.query.InvalidQueryException,
                             javax.jcr.RepositoryException

Description copied from interface: QueryManagerWrapper

Retrieves an existing persistent query.

Persistent queries are created by first using QueryManager.createQuery(java.lang.String, java.lang.String) to create a Query object and then calling Query.save to persist the query to a location in the workspace.

Specified by:

getQuery in interface javax.jcr.query.QueryManager

Specified by:

getQuery in interface QueryManagerWrapper

Parameters:

node - a persisted query (that is, a node of type nt:query).

Returns:

a Query object.

Throws:

javax.jcr.query.InvalidQueryException - If node is not a valid persisted query (that is, a node of type nt:query).

javax.jcr.RepositoryException - if another error occurs

getSupportedQueryLanguages

public String[] getSupportedQueryLanguages()
                                    throws javax.jcr.RepositoryException

Specified by:

getSupportedQueryLanguages in interface javax.jcr.query.QueryManager

Throws:

javax.jcr.RepositoryException