/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.waveprotocol.wave.model.document.util;
import org.waveprotocol.wave.model.document.RangedAnnotation;
import org.waveprotocol.wave.model.util.Preconditions;
/**
* An implementation of RangedAnnotation that simply holds values passed to it.
*
* This class has a mutator so that instances can be reused.
*
* @author ohler@google.com (Christian Ohler)
*
* @param <V> the type of annotation values
*/
public final class RangedAnnotationImpl<V> implements RangedAnnotation<V> {
private String key;
private V value;
private int start;
private int end;
public RangedAnnotationImpl(String key, V value, int start, int end) {
set(key, value, start, end);
}
public RangedAnnotationImpl(RangedAnnotation<V> other) {
this(other.key(), other.value(), other.start(), other.end());
}
public void set(String key, V value, int start, int end) {
// We don't have access to the size of the annotation set, but we can
// still check 0 <= start <= end.
Preconditions.checkPositionIndexes(start, end, Integer.MAX_VALUE);
Preconditions.checkNotNull(key, "key must not be null");
if (start >= end) {
throw new IllegalArgumentException("Attempt to set RangedAnnotation to zero length");
}
this.key = key;
this.value = value;
this.start = start;
this.end = end;
}
@Override
public String key() {
return key;
}
@Override
public V value() {
return value;
}
@Override
public int start() {
return start;
}
@Override
public int end() {
return end;
}
@Override
public String toString() {
return "RangedAnnotationImpl(" + key + ", " + value + ", " + start + ", " + end + ")";
}
}