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package com.sun.xml.bind.v2.model.annotation;
import java.lang.annotation.Annotation;
import com.sun.xml.bind.v2.model.core.ErrorHandler;
import com.sun.xml.bind.v2.runtime.IllegalAnnotationException;
/**
* {@link AnnotationReader} that reads annotation from classes,
* not from external binding files.
*
* This is meant to be used as a convenient partial implementation.
*
* @author Kohsuke Kawaguchi ([email protected])
*/
public abstract class AbstractInlineAnnotationReaderImpl
implements AnnotationReader {
private ErrorHandler errorHandler;
public void setErrorHandler(ErrorHandler errorHandler) {
if(errorHandler==null)
throw new IllegalArgumentException();
this.errorHandler = errorHandler;
}
/**
* Always return a non-null valid {@link ErrorHandler}
*/
public final ErrorHandler getErrorHandler() {
assert errorHandler!=null : "error handler must be set before use";
return errorHandler;
}
public final A getMethodAnnotation(Class annotation, M getter, M setter, Locatable srcPos) {
A a1 = getter==null?null:getMethodAnnotation(annotation,getter,srcPos);
A a2 = setter==null?null:getMethodAnnotation(annotation,setter,srcPos);
if(a1==null) {
if(a2==null)
return null;
else
return a2;
} else {
if(a2==null)
return a1;
else {
// both are present
getErrorHandler().error(new IllegalAnnotationException(
Messages.DUPLICATE_ANNOTATIONS.format(
annotation.getName(), fullName(getter),fullName(setter)),
a1, a2 ));
// recover by ignoring one of them
return a1;
}
}
}
public boolean hasMethodAnnotation(Class annotation, String propertyName, M getter, M setter, Locatable srcPos) {
boolean x = ( getter != null && hasMethodAnnotation(annotation, getter) );
boolean y = ( setter != null && hasMethodAnnotation(annotation, setter) );
if(x && y) {
// both are present. have getMethodAnnotation report an error
getMethodAnnotation(annotation,getter,setter,srcPos);
}
return x||y;
}
/**
* Gets the fully-qualified name of the method.
*
* Used for error messages.
*/
protected abstract String fullName(M m);
}