Java tutorial
/*************************GO-LICENSE-START********************************* * Copyright 2014 ThoughtWorks, 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. *************************GO-LICENSE-END***********************************/ package com.thoughtworks.go.server.domain.oauth; import java.util.Map; import com.thoughtworks.go.domain.PersistentObject; import org.apache.commons.lang.StringUtils; /** * @understands baseclass for persistent objects required by oauth plugin */ public abstract class OauthDomainEntity<T> extends PersistentObject { private static final String PARAM_ID = "id"; public abstract T getDTO(); protected void setIdIfAvailable(Map attributes) { Object value = attributes.get(PARAM_ID); if (StringUtils.isNotBlank(String.valueOf(value))) { Long aLong = (Long) attributes.get(PARAM_ID); if (aLong != null && aLong > 0) { this.id = aLong; } } } @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } OauthDomainEntity that = (OauthDomainEntity) o; if (id != that.id) { return false; } return true; } @Override public int hashCode() { return (int) (id ^ (id >>> 32)); } }