//$Id: QueryImpl.java 8524 2005-11-04 21:28:49Z steveebersole $
package org.hibernate.impl;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.hibernate.FlushMode;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.ScrollMode;
import org.hibernate.ScrollableResults;
import org.hibernate.engine.QueryParameters;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.engine.query.ParameterMetadata;
/**
* default implementation of the <tt>Query</tt> interface,
* for "ordinary" HQL queries (not collection filters)
* @see CollectionFilterImpl
* @author Gavin King
*/
public class QueryImpl extends AbstractQueryImpl {
private Map lockModes = new HashMap(2);
public QueryImpl(
String queryString,
FlushMode flushMode,
SessionImplementor session,
ParameterMetadata parameterMetadata) {
super( queryString, flushMode, session, parameterMetadata );
}
public QueryImpl(String queryString, SessionImplementor session, ParameterMetadata parameterMetadata) {
this( queryString, null, session, parameterMetadata );
}
public Iterator iterate() throws HibernateException {
verifyParameters();
Map namedParams = getNamedParams();
before();
try {
return getSession().iterate(
expandParameterLists(namedParams),
getQueryParameters(namedParams)
);
}
finally {
after();
}
}
public ScrollableResults scroll() throws HibernateException {
return scroll( ScrollMode.SCROLL_INSENSITIVE );
}
public ScrollableResults scroll(ScrollMode scrollMode) throws HibernateException {
verifyParameters();
Map namedParams = getNamedParams();
before();
QueryParameters qp = getQueryParameters(namedParams);
qp.setScrollMode(scrollMode);
try {
return getSession().scroll( expandParameterLists(namedParams), qp );
}
finally {
after();
}
}
public List list() throws HibernateException {
verifyParameters();
Map namedParams = getNamedParams();
before();
try {
return getSession().list(
expandParameterLists(namedParams),
getQueryParameters(namedParams)
);
}
finally {
after();
}
}
public int executeUpdate() throws HibernateException {
verifyParameters();
Map namedParams = getNamedParams();
before();
try {
return getSession().executeUpdate(
expandParameterLists( namedParams ),
getQueryParameters( namedParams )
);
}
finally {
after();
}
}
public Query setLockMode(String alias, LockMode lockMode) {
lockModes.put(alias, lockMode);
return this;
}
protected Map getLockModes() {
return lockModes;
}
}