com.xpn.xwiki.store.hibernate.query

Class HqlQueryExecutor

java.lang.Object

com.xpn.xwiki.store.hibernate.query.HqlQueryExecutor

All Implemented Interfaces:

org.xwiki.component.phase.Initializable, QueryExecutor

@Component
 @Named(value="hql")
 @Singleton
public class HqlQueryExecutor
extends Object
implements QueryExecutor, org.xwiki.component.phase.Initializable

QueryExecutor implementation for Hibernate Store.

Since:

1.6M1

Version:

$Id: 831d381d60b1e0efb07ec2e0b79f81f92b610c6e $

Constructor Summary

Constructors

Constructor and Description
HqlQueryExecutor()

Method Summary

Modifier and Type	Method and Description
protected void	checkAllowed(Query query)
protected String	completeShortFormStatement(String statement) Append the required select clause to HQL short query statements.
protected <T> org.hibernate.query.Query<T>	createHibernateQuery(org.hibernate.Session session, Query query)
<T> List<T>	execute(Query query)
protected XWikiContext	getContext()
protected XWikiHibernateStore	getStore()
void	initialize()
protected static boolean	isSafeSelect(String statementString)
protected void	populateParameters(org.hibernate.query.Query<?> hquery, Query query)
protected void	setNamedParameter(org.hibernate.query.Query<?> query, String name, Object value) Sets the value of the specified named parameter, taking into account the type of the given value.

Methods inherited from class java.lang.Object

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

Constructor Detail

HqlQueryExecutor

public HqlQueryExecutor()

Method Detail

initialize

public void initialize()
                throws org.xwiki.component.phase.InitializationException

Specified by:

initialize in interface org.xwiki.component.phase.Initializable

Throws:

org.xwiki.component.phase.InitializationException

isSafeSelect

protected static boolean isSafeSelect(String statementString)

Parameters:

statementString - the statement to evaluate

Returns:

true if the select is allowed for user without PR

checkAllowed

protected void checkAllowed(Query query)
                     throws QueryException

Throws:

QueryException

execute

public <T> List<T> execute(Query query)
                    throws QueryException

Specified by:

execute in interface QueryExecutor

Throws:

QueryException

createHibernateQuery

protected <T> org.hibernate.query.Query<T> createHibernateQuery(org.hibernate.Session session,
                                                                Query query)

completeShortFormStatement

protected String completeShortFormStatement(String statement)

Append the required select clause to HQL short query statements. Short statements are the only way for users without programming rights to perform queries. Such statements can be for example:

• , BaseObject obj where doc.fullName=obj.name and obj.className='XWiki.MyClass'
• where doc.creationDate > '2008-01-01'

Parameters:

statement - the statement to complete if required.

Returns:

the complete statement if it had to be completed, the original one otherwise.

populateParameters

protected void populateParameters(org.hibernate.query.Query<?> hquery,
                                  Query query)

Parameters:

hquery - query to populate parameters

query - query from to populate.

setNamedParameter

protected void setNamedParameter(org.hibernate.query.Query<?> query,
                                 String name,
                                 Object value)

Sets the value of the specified named parameter, taking into account the type of the given value.

Parameters:

query - the query to set the parameter for

name - the parameter name

value - the non-null parameter value

getStore

protected XWikiHibernateStore getStore()

Returns:

Store component

getContext

protected XWikiContext getContext()

Returns:

XWiki Context