/*
* Copyright 2017 the original author or authors.
*
* 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.
*/
package org.gradle.api.internal.changedetection.state;
/**
* A snapshot of an immutable scalar value. Should only be used for immutable JVM provided or core Gradle types.
*
* @param <T>
*/
public abstract class AbstractScalarValueSnapshot<T> implements ValueSnapshot {
private final T value;
public AbstractScalarValueSnapshot(T value) {
this.value = value;
}
public T getValue() {
return value;
}
@Override
public ValueSnapshot snapshot(Object value, ValueSnapshotter snapshotter) {
if (this.value.equals(value)) {
return this;
}
return snapshotter.snapshot(value);
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null || obj.getClass() != getClass()) {
return false;
}
AbstractScalarValueSnapshot other = (AbstractScalarValueSnapshot) obj;
return value.equals(other.value);
}
@Override
public int hashCode() {
return value.hashCode();
}
}