diff --git a/spring-data-commons-core/src/main/java/org/springframework/data/repository/core/support/DelegatingEntityInformation.java b/spring-data-commons-core/src/main/java/org/springframework/data/repository/core/support/DelegatingEntityInformation.java new file mode 100644 index 000000000..a25a6f7c3 --- /dev/null +++ b/spring-data-commons-core/src/main/java/org/springframework/data/repository/core/support/DelegatingEntityInformation.java @@ -0,0 +1,76 @@ +/* + * Copyright 2012 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.springframework.data.repository.core.support; + +import java.io.Serializable; + +import org.springframework.data.repository.core.EntityInformation; +import org.springframework.util.Assert; + +/** + * Useful base class to implement custom {@link EntityInformation}s and delegate execution of standard methods from + * {@link EntityInformation} to a special implementation. + * + * @author Oliver Gierke + */ +public class DelegatingEntityInformation implements EntityInformation { + + private final EntityInformation delegate; + + /** + * Creates a new {@link DelegatingEntityInformation} delegating method invocations to the given + * {@link EntityInformation}. + * + * @param delegate + */ + public DelegatingEntityInformation(EntityInformation delegate) { + + Assert.notNull(delegate); + this.delegate = delegate; + } + + /* + * (non-Javadoc) + * @see org.springframework.data.repository.core.EntityMetadata#getJavaType() + */ + public Class getJavaType() { + return delegate.getJavaType(); + } + + /* + * (non-Javadoc) + * @see org.springframework.data.repository.core.EntityInformation#isNew(java.lang.Object) + */ + public boolean isNew(T entity) { + return delegate.isNew(entity); + } + + /* + * (non-Javadoc) + * @see org.springframework.data.repository.core.EntityInformation#getId(java.lang.Object) + */ + public ID getId(T entity) { + return delegate.getId(entity); + } + + /* + * (non-Javadoc) + * @see org.springframework.data.repository.core.EntityInformation#getIdType() + */ + public Class getIdType() { + return delegate.getIdType(); + } +}