/*
 * 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.jdbi.v3.sqlobject.config;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.jdbi.v3.sqlobject.config.internal.ValueColumnImpl;

Configures the column to use for map values, for SQL methods that return Map, or Guava's Multimap. 
Example:
@SqlQuery("select key, value from config")
@KeyColumn("key")
@ValueColumn("value")
Map<String, String> getConfigs();

/**
 * Configures the column to use for map values, for SQL methods that return {@link java.util.Map}, or Guava's Multimap.
 * <p>Example:</p>
 * <pre>
 * &#64;SqlQuery("select key, value from config")
 * &#64;KeyColumn("key")
 * &#64;ValueColumn("value")
 * Map&lt;String, String&gt; getConfigs();
 * </pre>
 */
@ConfiguringAnnotation(ValueColumnImpl.class)
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface ValueColumn {
    
Returns:
the column name to use for map values./**
     * @return the column name to use for map values.
     */
    String value();
}