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org.hibernate.type.descriptor.sql.ClobTypeDescriptor Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.type.descriptor.sql;
import java.sql.CallableStatement;
import java.sql.Clob;
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#CLOB CLOB} handling.
*
* @author Steve Ebersole
* @author Gail Badner
*/
public abstract class ClobTypeDescriptor implements SqlTypeDescriptor {
@Override
public int getSqlType() {
return Types.CLOB;
}
@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.getClob( name ), options );
}
@Override
protected X doExtract(CallableStatement statement, int index, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getClob( index ), options );
}
@Override
protected X doExtract(CallableStatement statement, String name, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getClob( name ), options );
}
};
}
protected abstract BasicBinder getClobBinder(JavaTypeDescriptor javaTypeDescriptor);
@Override
public ValueBinder getBinder(JavaTypeDescriptor javaTypeDescriptor) {
return getClobBinder( javaTypeDescriptor );
}
public static final ClobTypeDescriptor DEFAULT = new ClobTypeDescriptor() {
@Override
public BasicBinder getClobBinder(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.getClobBinder( javaTypeDescriptor ).doBind( st, value, index, options );
}
else {
CLOB_BINDING.getClobBinder( javaTypeDescriptor ).doBind( st, value, index, options );
}
}
@Override
protected void doBind(CallableStatement st, X value, String name, WrapperOptions options)
throws SQLException {
if ( options.useStreamForLobBinding() ) {
STREAM_BINDING.getClobBinder( javaTypeDescriptor ).doBind( st, value, name, options );
}
else {
CLOB_BINDING.getClobBinder( javaTypeDescriptor ).doBind( st, value, name, options );
}
}
};
}
};
public static final ClobTypeDescriptor CLOB_BINDING = new ClobTypeDescriptor() {
@Override
public BasicBinder getClobBinder(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicBinder( javaTypeDescriptor, this ) {
@Override
protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options)
throws SQLException {
st.setClob( index, javaTypeDescriptor.unwrap( value, Clob.class, options ) );
}
@Override
protected void doBind(CallableStatement st, X value, String name, WrapperOptions options)
throws SQLException {
st.setClob( name, javaTypeDescriptor.unwrap( value, Clob.class, options ) );
}
};
}
};
public static final ClobTypeDescriptor POSTGRESQL_CLOB_BINDING = new ClobTypeDescriptor() {
@Override
public ValueExtractor getExtractor(JavaTypeDescriptor javaTypeDescriptor) {
return new BasicExtractor( javaTypeDescriptor, this ) {
@Override
protected X doExtract(ResultSet rs, String name, WrapperOptions options) throws SQLException {
return javaTypeDescriptor.wrap( rs.getString( name ), options );
}
@Override
protected X doExtract(CallableStatement statement, int index, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getString( index ), options );
}
@Override
protected X doExtract(CallableStatement statement, String name, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getString( name ), options );
}
};
}
@Override
public BasicBinder getClobBinder(final JavaTypeDescriptor javaTypeDescriptor) {
return new BasicBinder( javaTypeDescriptor, this ) {
@Override
protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options)
throws SQLException {
st.setString( index, javaTypeDescriptor.unwrap( value, String.class, options ) );
}
@Override
protected void doBind(CallableStatement st, X value, String name, WrapperOptions options)
throws SQLException {
st.setString( name, javaTypeDescriptor.unwrap( value, String.class, options ) );
}
};
}
};
public static final ClobTypeDescriptor STREAM_BINDING = new ClobTypeDescriptor() {
@Override
public BasicBinder getClobBinder(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() );
}
@Override
protected void doBind(CallableStatement st, X value, String name, WrapperOptions options)
throws SQLException {
final CharacterStream characterStream = javaTypeDescriptor.unwrap(
value,
CharacterStream.class,
options
);
st.setCharacterStream( name, characterStream.asReader(), characterStream.getLength() );
}
};
}
};
public static final ClobTypeDescriptor STREAM_BINDING_EXTRACTING = new ClobTypeDescriptor() {
@Override
public BasicBinder getClobBinder(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() );
}
@Override
protected void doBind(CallableStatement st, X value, String name, WrapperOptions options)
throws SQLException {
final CharacterStream characterStream = javaTypeDescriptor.unwrap(
value,
CharacterStream.class,
options
);
st.setCharacterStream( name, characterStream.asReader(), characterStream.getLength() );
}
};
}
@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.getCharacterStream( name ), options );
}
@Override
protected X doExtract(CallableStatement statement, int index, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getCharacterStream( index ), options );
}
@Override
protected X doExtract(CallableStatement statement, String name, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getCharacterStream( name ), options );
}
};
}
};
}
