org.hibernate.validator.internal.metadata.aggregated.rule.MethodConfigurationRule 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.internal.metadata.aggregated.rule;
import java.lang.invoke.MethodHandles;
import org.hibernate.validator.internal.metadata.raw.ConstrainedExecutable;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* A rule applying to the overriding methods of an inheritance hierarchy.
*
* @author Gunnar Morling
*/
public abstract class MethodConfigurationRule {
protected static final Log LOG = LoggerFactory.make( MethodHandles.lookup() );
/**
* Applies this rule. Invoked for each pair of methods collected by a given
* executable meta data {@link org.hibernate.validator.internal.metadata.aggregated.ExecutableMetaData.Builder}.
*
* @param method The first method to check.
* @param otherMethod The other method to check.
*
* @throws javax.validation.ConstraintDeclarationException If this rule is violated by the two given methods.
*/
public abstract void apply(ConstrainedExecutable method, ConstrainedExecutable otherMethod);
/**
* Whether {@code otherClazz} is a strict subtype of {@code clazz} or not.
* @param clazz the super type to check against
* @param otherClazz the subtype to check
*
* @return {@code true} if {@code otherClazz} is a strict subtype of {@code clazz}, {@code false} otherwise
*/
protected boolean isStrictSubType(Class clazz, Class otherClazz) {
return clazz.isAssignableFrom( otherClazz ) && !clazz.equals( otherClazz );
}
/**
* Whether {@code otherExecutable} is defined on a subtype of the declaring
* type of {@code executable} or not.
*
* @param executable the executable to check against
* @param otherExecutable the executable to check
*
* @return {@code true} if {@code otherExecutable} is defined on a subtype of the declaring type of
* {@code otherExecutable}, {@code false} otherwise
*/
protected boolean isDefinedOnSubType(ConstrainedExecutable executable, ConstrainedExecutable otherExecutable) {
Class clazz = executable.getCallable().getDeclaringClass();
Class otherClazz = otherExecutable.getCallable().getDeclaringClass();
return isStrictSubType( clazz, otherClazz );
}
/**
* Whether {@code otherExecutable} is defined on a parallel of the declaring
* type of {@code executable} or not.
*
* @param executable the executable to check against
* @param otherExecutable the executable to check
*
* @return {@code true} if {@code otherExecutable} is defined on a parallel of the declaring type of
* {@code otherExecutable}, {@code false} otherwise
*/
protected boolean isDefinedOnParallelType(ConstrainedExecutable executable, ConstrainedExecutable otherExecutable) {
Class clazz = executable.getCallable().getDeclaringClass();
Class otherClazz = otherExecutable.getCallable().getDeclaringClass();
return !( clazz.isAssignableFrom( otherClazz ) || otherClazz.isAssignableFrom( clazz ) );
}
}