org.springframework.beans.factory.support.MethodOverrides Maven / Gradle / Ivy
/*
* Copyright 2002-2019 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
*
* https://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 org.springframework.beans.factory.support;
import java.lang.reflect.Method;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import org.springframework.lang.Nullable;
/**
* Set of method overrides, determining which, if any, methods on a
* managed object the Spring IoC container will override at runtime.
*
* The currently supported {@link MethodOverride} variants are
* {@link LookupOverride} and {@link ReplaceOverride}.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @since 1.1
* @see MethodOverride
*/
public class MethodOverrides {
private final Set overrides = new CopyOnWriteArraySet<>();
/**
* Create new MethodOverrides.
*/
public MethodOverrides() {
}
/**
* Deep copy constructor.
*/
public MethodOverrides(MethodOverrides other) {
addOverrides(other);
}
/**
* Copy all given method overrides into this object.
*/
public void addOverrides(@Nullable MethodOverrides other) {
if (other != null) {
this.overrides.addAll(other.overrides);
}
}
/**
* Add the given method override.
*/
public void addOverride(MethodOverride override) {
this.overrides.add(override);
}
/**
* Return all method overrides contained by this object.
* @return a Set of MethodOverride objects
* @see MethodOverride
*/
public Set getOverrides() {
return this.overrides;
}
/**
* Return whether the set of method overrides is empty.
*/
public boolean isEmpty() {
return this.overrides.isEmpty();
}
/**
* Return the override for the given method, if any.
* @param method method to check for overrides for
* @return the method override, or {@code null} if none
*/
@Nullable
public MethodOverride getOverride(Method method) {
MethodOverride match = null;
for (MethodOverride candidate : this.overrides) {
if (candidate.matches(method)) {
match = candidate;
}
}
return match;
}
@Override
public boolean equals(@Nullable Object other) {
if (this == other) {
return true;
}
if (!(other instanceof MethodOverrides)) {
return false;
}
MethodOverrides that = (MethodOverrides) other;
return this.overrides.equals(that.overrides);
}
@Override
public int hashCode() {
return this.overrides.hashCode();
}
}