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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate;
import java.io.Serializable;
import java.sql.ResultSet;
import java.util.HashMap;
import java.util.Map;
/**
* Specifies the type of JDBC scrollable result set to use
* underneath a <tt>ScrollableResults</tt>
*
* @see Query#scroll(ScrollMode)
* @see ScrollableResults
* @author Gavin King
*/
public final class ScrollMode
implements Serializable {
private final int resultSetType
;
private final String name
;
private static final Map INSTANCES =
new HashMap();
private ScrollMode
(int level,
String name
) {
this.
resultSetType=level
;
this.
name=name
;
}
public String toString
() {
return name
;
}
/**
* @return the JDBC result set type code
*/
public int toResultSetType
() {
return resultSetType
;
}
/**
* @see java.sql.ResultSet.TYPE_FORWARD_ONLY
*/
public static final ScrollMode FORWARD_ONLY =
new ScrollMode
(ResultSet.
TYPE_FORWARD_ONLY,
"FORWARD_ONLY");
/**
* @see java.sql.ResultSet.TYPE_SCROLL_SENSITIVE
*/
public static final ScrollMode SCROLL_SENSITIVE =
new ScrollMode
(ResultSet.
TYPE_SCROLL_SENSITIVE,
"SCROLL_SENSITIVE");
/**
* Note that since the Hibernate session acts as a cache, you
* might need to expicitly evict objects, if you need to see
* changes made by other transactions.
* @see java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE
*/
public static final ScrollMode SCROLL_INSENSITIVE =
new ScrollMode
(ResultSet.
TYPE_SCROLL_INSENSITIVE,
"SCROLL_INSENSITIVE");
public boolean lessThan
(ScrollMode other
) {
return this.
resultSetType<other.
resultSetType;
}
static {
INSTANCES.
put( FORWARD_ONLY.
name, FORWARD_ONLY
);
INSTANCES.
put( SCROLL_INSENSITIVE.
name, SCROLL_INSENSITIVE
);
INSTANCES.
put( SCROLL_SENSITIVE.
name, SCROLL_SENSITIVE
);
}
private Object readResolve
() {
return INSTANCES.
get(name
);
}
}