net.sf.jsefa.xml.annotation.XmlElementList Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jsefa-android Show documentation

JSefa (Java Simple exchange format api) is a simple library for stream-based serialization of java objects to XML, CSV, FLR or any other format and back again using an iterator-style interface independent of the serialization format. The mapping between java object types and types of the serialization format (e. g. xml complex element types) can be defined either by annotating the java classes or programmatically using a simple API. The current implementation supports XML, CSV and FLR - for XML it is based on JSR 173.

The newest version!

/*
 * Copyright 2007 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 net.sf.jsefa.xml.annotation;

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

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

import net.sf.jsefa.common.annotation.NoValidatorType;
import net.sf.jsefa.common.validator.Validator;

/**
 * An annotation stating that the annotated java field should be mapped to a xml element with list type during XML
 * serialization and deserialization.
 * 
 * @author Norman Lahme-Huetig
 * 
 */
@Retention(RUNTIME)
@Target({FIELD})
public @interface XmlElementList {
    /**
     * The name of the element this annotation describes. It has the following format:

     * [prefix:]localname

     */
    String name() default "";

    /**
     * The position of the xml element with the following semantic:
     * 
     * If the position of a element A is less than the position of a element B, than element A comes (not
     * necessarily directly) before element B.

     * All elements with the default position value (-1) will come after all elements with explicitly given
     * positions.
     */
    int pos() default -1;

    /**
     * True, if there is no embracing element around the list items; false otherwise.
     */
    boolean implicit() default false;

    /**
     * An array of {@link ListItem} annotations describing the list items.
     */
    ListItem[] items();
    

    /**
     * True, if a value is required; false otherwise.
     */
    boolean required() default false;

    /**
     * Specifies the validator type to be used. In the default case the validator type is determined using the type
     * of the java field with this annotation.
     */
    Class validatorType() default NoValidatorType.class;

    /**
     * The constraints to validate. Each constraint is a String of the form 'name=value' where name is the name of
     * the constraint and value is its value. The allowed set of constraints depend on the validator type. 
     */
    String[] constraints() default {};    

}