/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.proxy.jdbc;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.sql.Clob;
import java.sql.SQLException;
import com.alibaba.druid.filter.FilterChain;
import com.alibaba.druid.filter.FilterChainImpl;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public class ClobProxyImpl implements ClobProxy {
protected final Clob clob;
protected final ConnectionProxy connection;
protected final DataSourceProxy dataSource;
public ClobProxyImpl(DataSourceProxy dataSource, ConnectionProxy connection, Clob clob){
this.dataSource = dataSource;
this.connection = connection;
this.clob = clob;
}
public FilterChain createChain() {
return new FilterChainImpl(dataSource);
}
public ConnectionProxy getConnectionWrapper() {
return this.connection;
}
@Override
public Clob getRawClob() {
return clob;
}
@Override
public void free() throws SQLException {
createChain().clob_free(this);
}
@Override
public InputStream getAsciiStream() throws SQLException {
return createChain().clob_getAsciiStream(this);
}
@Override
public Reader getCharacterStream() throws SQLException {
return createChain().clob_getCharacterStream(this);
}
@Override
public Reader getCharacterStream(long pos, long length) throws SQLException {
return createChain().clob_getCharacterStream(this, pos, length);
}
@Override
public String getSubString(long pos, int length) throws SQLException {
return createChain().clob_getSubString(this, pos, length);
}
@Override
public long length() throws SQLException {
return createChain().clob_length(this);
}
@Override
public long position(String searchstr, long start) throws SQLException {
return createChain().clob_position(this, searchstr, start);
}
@Override
public long position(Clob searchstr, long start) throws SQLException {
return createChain().clob_position(this, searchstr, start);
}
@Override
public OutputStream setAsciiStream(long pos) throws SQLException {
return createChain().clob_setAsciiStream(this, pos);
}
@Override
public Writer setCharacterStream(long pos) throws SQLException {
return createChain().clob_setCharacterStream(this, pos);
}
@Override
public int setString(long pos, String str) throws SQLException {
return createChain().clob_setString(this, pos, str);
}
@Override
public int setString(long pos, String str, int offset, int len) throws SQLException {
return createChain().clob_setString(this, pos, str, offset, len);
}
@Override
public void truncate(long len) throws SQLException {
createChain().clob_truncate(this, len);
}
public String toString() {
return clob.toString();
}
}