Java tutorial
/* * Copyright 2018 TWO SIGMA OPEN SOURCE, LLC * * 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 com.twosigma.beakerx.kernel; import com.twosigma.beakerx.util.Preconditions; import java.util.UUID; import static org.apache.commons.lang3.builder.EqualsBuilder.reflectionEquals; import static org.apache.commons.lang3.builder.HashCodeBuilder.reflectionHashCode; import static org.apache.commons.lang3.builder.ToStringBuilder.reflectionToString; public class GroupName { private String groupName; private GroupName(String groupName) { this.groupName = Preconditions.checkNotNull(groupName); } public static GroupName generate() { return new GroupName(UUID.randomUUID().toString()); } public static GroupName of(String groupname) { return new GroupName(groupname); } public String asString() { return groupName; } @Override public boolean equals(Object o) { return reflectionEquals(this, o); } @Override public int hashCode() { return reflectionHashCode(this); } @Override public String toString() { return reflectionToString(this); } }