de.japkit.metaannotations.AV Maven / Gradle / Ivy
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package de.japkit.metaannotations;
/**Annotation value.*/
public @interface AV {
/**
* By default, this rule is active.
* To switch it on or of case by case, a boolean expression can be used here.
*
* @return
*/
String cond() default "";
/**
* The expression language for the cond expression.
* @return
*/
String condLang() default "";
/**
* As an alternative to the cond expression, a boolean function can be called.
*
* @return
*/
Class[] condFun() default {};
/**
* An expression to determine the source object for generating this annotation value(s).
* The source element is available as "src" in expressions. If the src expression is not set, the src
* element of the parent element is used (usually the enclosing element).
*
* If this expression results in an Iterable, each object provided by the
* Iterator is use as source object. That is, the annotation value is generated
* multiple times, once for each object given by the iterator.
*
* @return
*/
String src() default "";
/**
* As an alternative to the src expression, a function can be called to determine the source object.
*
* @return
*/
Class[] srcFun() default {};
/**
*
* @return the language of the src expression. Defaults to Java EL.
*/
String srcLang() default "";
/**
*
* @return the name of the target annotation value
*/
String name();
/**
*
* @return the annotation value as a string
*/
String value() default "";
/**
*
* @return the annotation value as expression
*/
String expr() default "";
/**
*
* @return the expression language. Defaults to Java EL.
*/
String lang() default "";
/**
* To create annotations as annotation values, an annotation mapping can be
* referenced here by its Id. If expr is also set, the expression is
* expected to yield an element or a collection of elements for which to
* apply the annotation mapping.
*
* @return the id of the annotation mapping.
*/
String annotationMappingId() default "";
AVMode mode() default AVMode.ERROR_IF_EXISTS;
}