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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: JDBlobProxy.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2010 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.access;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.sql.Blob;
import java.sql.SQLException;
// JDBC 2.0
/**
The JDBlobProxy class provides access to binary large
objects. The data is valid only within the current
transaction.
**/
class JDBlobProxy
extends AbstractProxyImpl
implements Blob
{
static final String copyright = "Copyright (C) 1997-2001 International Business Machines Corporation and others.";
// Copied from JDError:
static final String EXC_FUNCTION_NOT_SUPPORTED = "IM001";
public InputStream getBinaryStream ()
throws SQLException
{
try {
JDInputStreamProxy newStream = new JDInputStreamProxy ();
return (JDInputStreamProxy) connection_.callFactoryMethod (
pxId_, "getBinaryStream", newStream);
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
public byte[] getBytes (long start, int length)
throws SQLException
{
try {
return (byte[]) connection_.callMethod (pxId_, "getBytes",
new Class[] { Long.TYPE, Integer.TYPE },
new Object[] { new Long (start),
new Integer (length) })
.getReturnValue();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
public long length ()
throws SQLException
{
try {
return connection_.callMethod (pxId_, "length")
.getReturnValueLong ();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
public long position (byte[] pattern, long start)
throws SQLException
{
try {
return connection_.callMethod (pxId_, "position",
new Class[] { byte[].class, Long.TYPE },
new Object[] { pattern, new Long (start) })
.getReturnValueLong ();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
public long position (Blob pattern, long start)
throws SQLException
{
try {
return connection_.callMethod (pxId_, "position",
new Class[] { Blob.class, Long.TYPE },
new Object[] { pattern, new Long (start) })
.getReturnValueLong ();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
// JDBC 3.0
public OutputStream setBinaryStream (long pos)
throws SQLException
{
// Avoid dragging in JDError
//@K1D throw new SQLException (
//@K1D AS400JDBCDriver.getResource("JD" + EXC_FUNCTION_NOT_SUPPORTED),
//@K1D EXC_FUNCTION_NOT_SUPPORTED, -99999);
try //@K1A
{
JDOutputStreamProxy newStream = new JDOutputStreamProxy ();
return (JDOutputStreamProxy) connection_.callFactoryMethod (pxId_, "setBinaryStream",
new Class[] { Long.TYPE},
new Object[] { new Long(pos)},
newStream);
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
// JDBC 3.0
public int setBytes (long pos, byte[] bytes)
throws SQLException
{
try {
return connection_.callMethod (pxId_, "setBytes",
new Class[] { Long.TYPE, byte[].class},
new Object[] { new Long(pos), bytes})
.getReturnValueInt ();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
// JDBC 3.0
public int setBytes (long pos, byte[] bytes, int offset, int len)
throws SQLException
{
try {
return connection_.callMethod (pxId_, "setBytes",
new Class[] { Long.TYPE, byte[].class, Integer.TYPE, Integer.TYPE},
new Object[] { new Long(pos), bytes, new Integer(offset), new Integer(len)})
.getReturnValueInt ();
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
// JDBC 3.0
public void truncate (long len)
throws SQLException
{
try {
connection_.callMethod (pxId_, "truncate",
new Class[] { Long.TYPE},
new Object[] { new Long(len)});
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
//@PDA jdbc40
public synchronized void free() throws SQLException
{
try {
connection_.callMethod (pxId_, "free");
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
//@PDA jdbc40
public synchronized InputStream getBinaryStream(long pos, long length) throws SQLException
{
try {
JDInputStreamProxy newStream = new JDInputStreamProxy ();
return (JDInputStreamProxy) connection_.callFactoryMethod (
pxId_, "getBinaryStream",
new Class[] { Long.TYPE, Long.TYPE},
new Object[] { new Long(pos), new Long(length)},
newStream);
}
catch (InvocationTargetException e) {
throw JDConnectionProxy.rethrow1 (e);
}
}
}