Spring Framework example source code file (PassThroughClob.java)

This example Spring Framework source code file (PassThroughClob.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

clob, inputstream, io, jdbc, outputstream, passthroughclob, reader, reader, sql, sqlexception, sqlexception, string, string, unsupportedoperationexception, unsupportedoperationexception, writer

The Spring Framework PassThroughClob.java source code

/*
 * Copyright 2002-2008 the original author or authors.
 *
 * 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 org.springframework.jdbc.support.lob;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringReader;
import java.io.Writer;
import java.sql.Clob;
import java.sql.SQLException;

/**
 * Simple JDBC {@link Clob} adapter that exposes a given String or character stream.
 * Optionally used by {@link DefaultLobHandler}.
 *
 * @author Juergen Hoeller
 * @since 2.5.3
 */
class PassThroughClob implements Clob {

	private String content;

	private Reader characterStream;

	private long contentLength;


	public PassThroughClob(String content) {
		this.content = content;
		this.contentLength = content.length();
	}

	public PassThroughClob(Reader characterStream, long contentLength) {
		this.characterStream = characterStream;
		this.contentLength = contentLength;
	}


	public long length() throws SQLException {
		return this.contentLength;
	}

	public Reader getCharacterStream() throws SQLException {
		return (this.content != null ? new StringReader(this.content) : this.characterStream);
	}


	public Reader getCharacterStream(long pos, long length) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public Writer setCharacterStream(long pos) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public InputStream getAsciiStream() throws SQLException {
		return null;
	}

	public OutputStream setAsciiStream(long pos) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public String getSubString(long pos, int length) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public int setString(long pos, String str) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public int setString(long pos, String str, int offset, int len) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public long position(String searchstr, long start) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public long position(Clob searchstr, long start) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public void truncate(long len) throws SQLException {
		throw new UnsupportedOperationException();
	}

	public void free() throws SQLException {
		throw new UnsupportedOperationException();
	}

}