| | | Long Range |
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/*
* @(#)$Id: codetemplate_xbird.xml 943 2006-09-13 07:03:37Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* Makoto YUI - initial implementation
*/
//package xbird.util.struct;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI ([email protected])
*/
public class LongRange implements Externalizable, Comparable<LongRange> {
private static final long serialVersionUID = 6867907859871402394L;
private long start, end;
public LongRange() {}
public LongRange(long start, long end) {
if(start > end) {
throw new IllegalArgumentException("Illegal range: " + start + " to " + end);
}
this.start = start;
this.end = end;
}
public void setStart(long start) {
this.start = start;
}
public void setEnd(long end) {
this.end = end;
}
public long getEnd() {
return end;
}
public long getStart() {
return start;
}
public boolean contains(LongRange other, boolean partially) {
if(partially) {
return other.start >= start && other.start <= end;
} else {
return start <= other.start && end >= other.end;
}
}
public boolean contains(long o) {
return o >= start && o <= end;
}
public LongRange mergeWith(LongRange other) {
if(!contains(other, true)) {
return null;
}
long newStart = Math.min(start, other.start);
long newEnd = Math.max(end, other.end);
return new LongRange(newStart, newEnd);
}
public int compareTo(LongRange other) {
if(start < other.start) {
return -1;
} else if(start > other.start) {
return 1;
} else if(end == other.end) {
return 0;
} else {
return end < other.end ? -1 : 1;
}
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
this.start = in.readLong();
this.end = in.readLong();
}
public void writeExternal(ObjectOutput out) throws IOException {
out.writeLong(start);
out.writeLong(end);
}
public static LongRange readFrom(ObjectInput in) throws IOException {
long start = in.readLong();
long end = in.readLong();
return new LongRange(start, end);
}
@Override
public boolean equals(Object obj) {
if(!(obj instanceof LongRange)) {
return false;
}
LongRange other = (LongRange) obj;
return other.start == start && other.end == end;
}
@Override
public int hashCode() {
return (int) (start ^ end);
}
@Override
public String toString() {
return Long.toString(start) + "-" + Long.toString(end);
}
}
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