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;
public abstract class NClobTypeDescriptor implements SqlTypeDescriptor {
@Override
public int getSqlType() {
return Types.NCLOB;
}
@Override
public boolean canBeRemapped() {
return true;
}
@Override
public <X> ValueExtractor<X> (final JavaTypeDescriptor<X> javaTypeDescriptor) {
return new BasicExtractor<X>( javaTypeDescriptor, this ) {
@Override
protected X (ResultSet rs, String name, WrapperOptions options) throws SQLException {
return javaTypeDescriptor.wrap( rs.getNClob( name ), options );
}
@Override
protected X (CallableStatement statement, int index, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getNClob( index ), options );
}
@Override
protected X (CallableStatement statement, String name, WrapperOptions options)
throws SQLException {
return javaTypeDescriptor.wrap( statement.getNClob( name ), options );
}
};
}
protected abstract <X> BasicBinder<X> getNClobBinder(JavaTypeDescriptor<X> javaTypeDescriptor);
@Override
public <X> ValueBinder<X> getBinder(JavaTypeDescriptor<X> javaTypeDescriptor) {
return getNClobBinder( javaTypeDescriptor );
}
public static final NClobTypeDescriptor DEFAULT = new NClobTypeDescriptor() {
@Override
public <X> BasicBinder<X> getNClobBinder(final JavaTypeDescriptor<X> javaTypeDescriptor) {
return new BasicBinder<X>( 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 <X> BasicBinder<X> getNClobBinder(final JavaTypeDescriptor<X> javaTypeDescriptor) {
return new BasicBinder<X>( 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 <X> BasicBinder<X> getNClobBinder(final JavaTypeDescriptor<X> javaTypeDescriptor) {
return new BasicBinder<X>( 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() );
}
};
}
};
}