/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.db.sql;
import com.caucho.db.blob.BlobInputStream;
import com.caucho.db.block.BlockStore;
import com.caucho.util.L10N;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.sql.Clob;
import java.sql.SQLException;
/**
* The JDBC clob implementation.
*/
public class ClobImpl implements java.sql.Clob {
private static final L10N L = new L10N(ClobImpl.class);
private BlockStore _store;
private byte []_inode = new byte[128];
ClobImpl()
{
}
void setStore(BlockStore store)
{
_store = store;
}
byte []getInode()
{
return _inode;
}
/**
* Returns the clob as a stream.
*/
public InputStream getAsciiStream()
throws SQLException
{
// XXX: lie, since this is utf8
return new BlobInputStream(_store, _inode, 0);
}
/**
* Returns a subset of the bytes.
*/
public Reader getCharacterStream()
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Returns a copy of the specified substring.
*/
public String getSubString(long pos, int length)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Returns the length of the clob
*/
public long length()
throws SQLException
{
return BlobInputStream.readLong(_inode, 0);
}
/**
* Returns the position in the clob where the pattern starts.
*/
public long position(Clob pattern, long start)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Returns the position in the clob where the pattern starts.
*/
public long position(String pattern, long start)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Returns a stream to write to the clob.
*/
public OutputStream setAsciiStream(long pos)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Returns a stream to write to the clob.
*/
public Writer setCharacterStream(long pos)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Sets a subset of bytes.
*/
public int setString(long pos, String string)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Sets a subset of bytes.
*/
public int setString(long pos, String string, int offset, int len)
throws SQLException
{
throw new UnsupportedOperationException();
}
/**
* Truncates the clob
*/
public void truncate(long length)
throws SQLException
{
throw new UnsupportedOperationException();
}
public String toString()
{
return "ClobImpl[]";
}
public void free() throws SQLException {
throw new UnsupportedOperationException("Not supported yet.");
}
public Reader getCharacterStream(long pos, long length) throws SQLException {
throw new UnsupportedOperationException("Not supported yet.");
}
}