/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb_voltpatches.types;
import java.io.Reader;
import org.hsqldb_voltpatches.Error;
import org.hsqldb_voltpatches.ErrorCode;
import org.hsqldb_voltpatches.HsqlException;
import org.hsqldb_voltpatches.SessionInterface;
import org.hsqldb_voltpatches.result.Result;
import org.hsqldb_voltpatches.result.ResultLob;
/**
* Implementation of CLOB for client and server.<p>
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 1.9.0
* @since 1.9.0
*/
public class ClobDataID implements ClobData {
long id;
public ClobDataID(long id) {
this.id = id;
}
public char[] getChars(SessionInterface session, long position,
int length) {
ResultLob resultOut = ResultLob.newLobGetCharsRequest(id, position,
length);
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return ((ResultLob) resultIn).getCharArray();
}
public long length(SessionInterface session) {
ResultLob resultOut = ResultLob.newLobGetLengthRequest(id);
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return ((ResultLob) resultIn).getBlockLength();
}
public String getSubString(SessionInterface session, long pos,
int length) {
char[] chars = getChars(session, pos, length);
return new String(chars);
}
public ClobData getClob(SessionInterface session, long position,
long length) {
ResultLob resultOut = ResultLob.newLobGetRequest(id, position, length);
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return new ClobDataID(((ResultLob) resultIn).getLobID());
}
public void truncate(SessionInterface session, long len) {}
public Reader getCharacterStream(SessionInterface session) {
return null;
}
public long setCharacterStream(SessionInterface session, long pos,
Reader in) {
return 0;
}
public int setString(SessionInterface session, long pos, String str) {
ResultLob resultOut = ResultLob.newLobSetCharsRequest(id, pos,
str.toCharArray());
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return str.length();
}
public int setString(SessionInterface session, long pos, String str,
int offset, int len) {
if (!isInLimits(str.length(), offset, len)) {
throw Error.error(ErrorCode.X_22001);
}
ResultLob resultOut = ResultLob.newLobSetCharsRequest(id, pos,
str.substring(offset, len).toCharArray());
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return str.length();
}
public int setChars(SessionInterface session, long pos, char[] chars,
int offset, int len) {
if (!isInLimits(chars.length, offset, len)) {
throw Error.error(ErrorCode.X_22001);
}
char[] newChars = new char[len];
System.arraycopy(chars, offset, newChars, 0, len);
ResultLob resultOut = ResultLob.newLobSetCharsRequest(id, pos, chars);
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return len;
}
public long position(SessionInterface session, String searchstr,
long start) {
ResultLob resultOut = ResultLob.newLobGetCharPatternPositionRequest(id,
searchstr.toCharArray(), start);
Result resultIn = session.execute(resultOut);
if (resultIn.isError()) {
throw resultIn.getException();
}
return ((ResultLob) resultIn).getOffset();
}
public long position(SessionInterface session, ClobData searchstr,
long start) {
return 0L;
}
public long nonSpaceLength(SessionInterface session) {
return 0;
}
public Reader getCharacterStream(SessionInterface session, long pos,
long length) {
return null;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public long getRightTrimSize(SessionInterface session) {
return 0;
}
static boolean isInLimits(long fullLength, long pos, long len) {
return pos >= 0 && len >= 0 && pos + len <= fullLength;
}
public void setSession(SessionInterface session) {}
public boolean isBinary() {
return false;
}
}