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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, Red Hat Inc. 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 Inc.
*
* 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.type.descriptor.sql;
import java.sql.CallableStatement;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.engine.jdbc.CharacterStream;
import org.hibernate.type.descriptor.ValueBinder;
import org.hibernate.type.descriptor.ValueExtractor;
import org.hibernate.type.descriptor.WrapperOptions;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
/**
* Descriptor for {@link Types#NCLOB NCLOB} handling.
*
* @author Steve Ebersole
* @author Gail Badner
*/
public abstract class NClobTypeDescriptor implements SqlTypeDescriptor {
@Override
public int getSqlType() {
return Types.NCLOB;
}
@Override
public boolean canBeRemapped() {
return true;
}
@Override
public ValueExtractor getExtractor(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicExtractor( javaTypeDescriptor, this ) {
@Override
protected X doExtract(ResultSet rs, String name, WrapperOptions options) throws SQLException {
return javaTypeDescriptor.wrap( rs.getNClob( name ), options );
}
@Override
protected X doExtract(CallableStatement statement, int index, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getNClob( index ), options );
}
@Override
protected X doExtract(CallableStatement statement, String name, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getNClob( name ), options );
}
};
}
protected abstract BasicBinder getNClobBinder(JavaTypeDescriptor javaTypeDescriptor);
@Override
public ValueBinder getBinder(JavaTypeDescriptor javaTypeDescriptor) {
return getNClobBinder( javaTypeDescriptor );
}
public static final NClobTypeDescriptor DEFAULT =
new NClobTypeDescriptor() {
{
SqlTypeDescriptorRegistry.INSTANCE.addDescriptor( this );
}
@Override
public BasicBinder getNClobBinder(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicBinder( javaTypeDescriptor, this ) {
@Override
protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options) throws SQLException {
if ( options.useStreamForLobBinding() ) {
STREAM_BINDING.getNClobBinder( javaTypeDescriptor ).doBind( st, value, index, options );
}
else {
NCLOB_BINDING.getNClobBinder( javaTypeDescriptor ).doBind( st, value, index, options );
}
}
};
}
};
public static final NClobTypeDescriptor NCLOB_BINDING =
new NClobTypeDescriptor() {
@Override
public BasicBinder getNClobBinder(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicBinder( javaTypeDescriptor, this ) {
@Override
protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options)
throws SQLException {
st.setNClob( index, javaTypeDescriptor.unwrap( value, NClob.class, options ) );
}
};
}
};
public static final NClobTypeDescriptor STREAM_BINDING =
new NClobTypeDescriptor() {
@Override
public BasicBinder getNClobBinder(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicBinder( javaTypeDescriptor, this ) {
@Override
protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options)
throws SQLException {
final CharacterStream characterStream = javaTypeDescriptor.unwrap( value, CharacterStream.class, options );
st.setCharacterStream( index, characterStream.asReader(), characterStream.getLength() );
}
};
}
};
}