/* Copyright 2012 Google, Inc.
*
* 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.arbeitspferde.groningen;
import com.google.common.base.Preconditions;
import org.arbeitspferde.groningen.config.PipelineScoped;
/**
* Id used to uniquely identify pipelines.
*/
@PipelineScoped
public class PipelineId implements Comparable<PipelineId> {
private final String id;
public PipelineId(String id) {
Preconditions.checkNotNull(id, "Pipeline id cannot be null.");
this.id = id;
}
public String id() {
return id;
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof PipelineId)) {
return false;
} else {
return id.equals(((PipelineId) obj).id);
}
}
@Override
public int hashCode() {
return id.hashCode();
}
@Override
public int compareTo(PipelineId o) {
return id.compareTo(o.id);
}
@Override
public String toString() {
return id;
}
}