clobimpl.java

来自「 EasyDBO是一个超轻量级对象-关系映射（Object/Relation M」· Java 代码 · 共 85 行

package com.easyjf.dbo;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.io.StringReader;

import java.sql.Clob;
import java.sql.SQLException;

/**
 * @author wangliang138840
 *
 */
public class ClobImpl implements Clob{
	
	private Reader reader = null;
	private int length;
	
	public ClobImpl(String str){
		reader = new StringReader(str);
		length = str.length();
	}
	
	public ClobImpl(Reader reader, int length){
		this.reader = reader;
		this.length = length;
	}
    public long length()
    throws SQLException{
    	return length;
    }

	public void truncate(long l)
	    throws SQLException{
		
	}
	
	public InputStream getAsciiStream()
	    throws SQLException{
		return null;
	}
	
	public OutputStream setAsciiStream(long l)
	    throws SQLException{
		return null;
	}
	
	public Reader getCharacterStream()
	    throws SQLException{
		return reader;
	}
	
	public Writer setCharacterStream(long l)
	    throws SQLException{
		return null;
	}
	
	public String getSubString(long l, int i)
	    throws SQLException{
		return null;
	}
	
	public int setString(long l, String s)
	    throws SQLException{
		return -1;
	}
	
	public int setString(long l, String s, int i, int j)
	    throws SQLException{
		return -1;
	}
	
	public long position(String s, long l)
	    throws SQLException{
		return -1;
	}
	
	public long position(Clob clob, long l)
	    throws SQLException{
		return -1;
	}
}