org.hibernate.validator.cfg.ConstraintDef Maven / Gradle / Ivy
/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or .
*/
package org.hibernate.validator.cfg;
import java.lang.annotation.Annotation;
import javax.validation.Payload;
import org.hibernate.validator.internal.util.StringHelper;
/**
* Base class for all constraint definition types. Each sub type represents a
* single constraint annotation type and allows to add this constraint to a bean
* class in a programmatic type-safe way with help of the
* {@link ConstraintMapping} API.
*
* @param The type of a concrete sub type. Following to the
* "self referencing generic type" pattern each sub type has to be
* parametrized with itself.
* @param The constraint annotation type represented by a concrete sub type.
*
* @author Hardy Ferentschik
* @author Gunnar Morling
*/
public abstract class ConstraintDef, A extends Annotation> extends AnnotationDef {
protected ConstraintDef(Class constraintType) {
super( constraintType );
}
protected ConstraintDef(ConstraintDef original) {
super( original );
}
@SuppressWarnings("unchecked")
private C getThis() {
return (C) this;
}
public C message(String message) {
addParameter( "message", message );
return getThis();
}
public C groups(Class... groups) {
addParameter( "groups", groups );
return getThis();
}
@SuppressWarnings("unchecked")
public C payload(Class... payload) {
addParameter( "payload", payload );
return getThis();
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append( this.getClass().getName() );
sb.append( ", constraintType=" ).append( StringHelper.toShortString( annotationType ) );
sb.append( ", parameters=" ).append( parameters );
sb.append( '}' );
return sb.toString();
}
}