cubrid.jdbc.driver.CUBRIDLobHandle Maven / Gradle / Ivy
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/*
* Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution.
*
* 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 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.
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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package cubrid.jdbc.driver;
public class CUBRIDLobHandle {
private int lobType; // U_TYPE_BLOB or U_TYPE_CLOB
private long lobSize;
private byte[] packedLobHandle;
private String locator;
public CUBRIDLobHandle(int lobType, byte[] packedLobHandle) {
this.lobType = lobType;
this.packedLobHandle = packedLobHandle;
initLob();
}
private void initLob() {
int pos = 0;
if (packedLobHandle == null) {
throw new NullPointerException();
}
pos += 4; // skip db_type
lobSize = 0;
for (int i = pos; i < pos + 8; i++) {
lobSize <<= 8;
lobSize |= (packedLobHandle[i] & 0xff);
}
pos += 8; // lob_size
int locatorSize = 0;
for (int i = pos; i < pos + 4; i++) {
locatorSize <<= 8;
locatorSize |= (packedLobHandle[i] & 0xff);
}
pos += 4; // locator_size
locator = new String(packedLobHandle, pos, locatorSize - 1);
// remove terminating null character
}
public void setLobSize(long size) {
int pos = 0;
if (packedLobHandle == null) {
throw new NullPointerException();
}
pos += 4; // skip db_type
lobSize = size;
int bitpos = 64;
for (int i = pos; i < pos + 8; i++) {
bitpos -= 8;
packedLobHandle[i] = (byte) ((lobSize >>> bitpos) & 0xFF);
}
}
public long getLobSize() {
return lobSize;
}
public byte[] getPackedLobHandle() {
return packedLobHandle;
}
public String toString() {
return locator;
}
public boolean equals(Object obj) {
if (obj instanceof CUBRIDLobHandle) {
CUBRIDLobHandle that = (CUBRIDLobHandle) obj;
return lobType == that.lobType && lobSize == that.lobSize
&& locator.equals(that.locator);
}
return false;
}
}