modules/core/src/main/java/org/apache/ignite/internal/GridCodegenConverter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.ignite.internal;

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

/**
 * Annotates fields that required custom reading / writing.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface GridCodegenConverter {
    /**
     * Converter code. Replace original field value by converted.
     *
     * @return Code to get field value.
     */
    String get() default "";

    /**
     * Converter code. A raw read value is available at $val$ placeholder
     *
     * @return Code to set field value.
     */
    String set() default "";

    /**
     * @return Result type. Use this type to read / write the converted value.
     */
    Class<?> type() default Default.class;

    /**
     * Used as the default value for converter type
     */
    class Default {
        // No-op.
    }
}