package org.hibernate.engine.jdbc;
import java.io.InputStream;
import java.io.Reader;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.NClob;
import java.sql.SQLException;
import org.hibernate.JDBCException;
public class ContextualLobCreator extends AbstractLobCreator implements LobCreator {
private LobCreationContext lobCreationContext;
public ContextualLobCreator(LobCreationContext lobCreationContext) {
this.lobCreationContext = lobCreationContext;
}
public Blob createBlob() {
return lobCreationContext.execute( CREATE_BLOB_CALLBACK );
}
@Override
public Blob createBlob(byte[] bytes) {
try {
final Blob blob = createBlob();
blob.setBytes( 1, bytes );
return blob;
}
catch ( SQLException e ) {
throw new JDBCException( "Unable to set BLOB bytes after creation", e );
}
}
@Override
public Blob createBlob(InputStream inputStream, long length) {
return NonContextualLobCreator.INSTANCE.createBlob( inputStream, length );
}
public Clob createClob() {
return lobCreationContext.execute( CREATE_CLOB_CALLBACK );
}
@Override
public Clob createClob(String string) {
try {
final Clob clob = createClob();
clob.setString( 1, string );
return clob;
}
catch ( SQLException e ) {
throw new JDBCException( "Unable to set CLOB string after creation", e );
}
}
@Override
public Clob createClob(Reader reader, long length) {
return NonContextualLobCreator.INSTANCE.createClob( reader, length );
}
public NClob createNClob() {
return lobCreationContext.execute( CREATE_NCLOB_CALLBACK );
}
@Override
public NClob createNClob(String string) {
try {
final NClob nclob = createNClob();
nclob.setString( 1, string );
return nclob;
}
catch ( SQLException e ) {
throw new JDBCException( "Unable to set NCLOB string after creation", e );
}
}
@Override
public NClob createNClob(Reader reader, long length) {
return NonContextualLobCreator.INSTANCE.createNClob( reader, length );
}
public static final LobCreationContext.Callback<Blob> CREATE_BLOB_CALLBACK = new LobCreationContext.Callback<Blob>() {
@Override
public Blob executeOnConnection(Connection connection) throws SQLException {
return connection.createBlob();
}
};
public static final LobCreationContext.Callback<Clob> CREATE_CLOB_CALLBACK = new LobCreationContext.Callback<Clob>() {
@Override
public Clob executeOnConnection(Connection connection) throws SQLException {
return connection.createClob();
}
};
public static final LobCreationContext.Callback<NClob> CREATE_NCLOB_CALLBACK = new LobCreationContext.Callback<NClob>() {
@Override
public NClob executeOnConnection(Connection connection) throws SQLException {
return connection.createNClob();
}
};
}