/* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
This file is part of the db4o open source object database.
db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
package com.db4o.internal.handlers;
import com.db4o.CorruptionException;
import com.db4o.Deploy;
import com.db4o.foundation.Coercion4;
import com.db4o.internal.Buffer;
import com.db4o.internal.Const4;
import com.db4o.internal.LatinStringIO;
import com.db4o.internal.ObjectContainerBase;
import com.db4o.internal.ReaderPair;
import com.db4o.internal.StatefulBuffer;
import com.db4o.internal.marshall.MarshallerFamily;
import com.db4o.reflect.ReflectClass;
/**
* @exclude
*/
public class IntHandler extends PrimitiveHandler {
private static final Integer i_primitive = new Integer(0);
public IntHandler(ObjectContainerBase stream) {
super(stream);
}
public Object coerce(ReflectClass claxx, Object obj) {
return Coercion4.toInt(obj);
}
public Object defaultValue(){
return i_primitive;
}
public int getID() {
return 1;
}
protected Class primitiveJavaClass() {
return int.class;
}
public int linkLength() {
return Const4.INT_LENGTH;
}
public Object primitiveNull() {
return i_primitive;
}
public Object read(MarshallerFamily mf, StatefulBuffer writer, boolean redirect) throws CorruptionException {
return mf._primitive.readInteger(writer);
}
Object read1(Buffer a_bytes) {
return new Integer(a_bytes.readInt());
}
public void write(Object obj, Buffer writer) {
write(((Integer) obj).intValue(), writer);
}
public void write(int intValue, Buffer writer) {
writeInt(intValue, writer);
}
public static final void writeInt(int a_int, Buffer a_bytes) {
if (Deploy.debug) {
a_bytes.writeBegin(Const4.YAPINTEGER);
if (Deploy.debugLong) {
String l_s = " " + new Integer(a_int).toString();
new LatinStringIO().write(
a_bytes,
l_s.substring(l_s.length() - Const4.INTEGER_BYTES));
} else {
for (int i = Const4.WRITE_LOOP; i >= 0; i -= 8) {
a_bytes._buffer[a_bytes._offset++] = (byte) (a_int >> i);
}
}
a_bytes.writeEnd();
} else {
a_bytes.writeInt(a_int);
}
}
// Comparison_______________________
private int i_compareTo;
protected final int val(Object obj) {
return ((Integer) obj).intValue();
}
public int compareTo(int other){
return other - i_compareTo;
}
public void prepareComparison(int i) {
i_compareTo = i;
}
void prepareComparison1(Object obj) {
prepareComparison(val(obj));
}
public Object current1(){
return new Integer(currentInt());
}
public int currentInt(){
return i_compareTo;
}
boolean isEqual1(Object obj) {
return obj instanceof Integer && val(obj) == i_compareTo;
}
boolean isGreater1(Object obj) {
return obj instanceof Integer && val(obj) > i_compareTo;
}
boolean isSmaller1(Object obj) {
return obj instanceof Integer && val(obj) < i_compareTo;
}
public void defragIndexEntry(ReaderPair readers) {
readers.incrementIntSize();
}
}