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A type-safe HTTP client for Android and Java.

There is a newer version: 2.11.0

/*
 * Copyright (C) 2014 Square, 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 retrofit2.http;

import java.lang.annotation.Annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.lang.reflect.Type;
import retrofit2.Retrofit;

import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Query parameter keys and values appended to the URL.
 * 
 * Values are converted to strings using {@link Retrofit#stringConverter(Type, Annotation[])}
 * (or {@link Object#toString()}, if no matching string converter is installed).
 * 

 * Simple Example:
 * 

 * @GET("/friends")
 * Call<ResponseBody> friends(@QueryMap Map<String, String> filters);
 * 
 * Calling with {@code foo.friends(ImmutableMap.of("group", "coworker", "age", "42"))} yields
 * {@code /friends?group=coworker&age=42}.
 * 
 * Map keys and values representing parameter values are URL encoded by default. Specify
 * {@link #encoded() encoded=true} to change this behavior.
 * 

 * @GET("/friends")
 * Call<ResponseBody> friends(@QueryMap(encoded=true) Map<String, String> filters);
 * 
 * Calling with {@code foo.list(ImmutableMap.of("group", "coworker+bowling"))} yields
 * {@code /search?group=coworker+bowling}.
 * 
 * A {@code null} value for the map, as a key, or as a value is not allowed.
 *
 * @see Query
 * @see QueryName
 */
@Documented
@Target(PARAMETER)
@Retention(RUNTIME)
public @interface QueryMap {
  /** Specifies whether parameter names and values are already URL encoded. */
  boolean encoded() default false;
}