com.datastax.oss.driver.api.mapper.annotations.DaoKeyspace Maven / Gradle / Ivy
/*
* Copyright DataStax, 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 com.datastax.oss.driver.api.mapper.annotations;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotates the parameter of a {@link DaoFactory} method that indicates the keyspace to create a
* DAO for.
*
* Example:
*
*
* @Mapper
* public interface InventoryMapper {
* ProductDao productDao(@DaoKeyspace String ks);
* }
*
*
* The annotated parameter can be a {@link String} or {@link CqlIdentifier}. If it is present, the
* value will be injected in the DAO instance, where it will be used in generated queries, and can
* be substituted in text queries. This allows you to reuse the same DAO for different keyspaces.
*
* @see DaoFactory
*/
@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
public @interface DaoKeyspace {}