com.google.inject.matcher.AbstractMatcher Maven / Gradle / Ivy
/**
* Copyright (C) 2006 Google Inc.
*
* 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
*
* http://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 com.google.inject.matcher;
import java.io.Serializable;
/**
* Implements {@code and()} and {@code or()}.
*
* @author [email protected] (Bob Lee)
*/
public abstract class AbstractMatcher implements Matcher {
public Matcher and(final Matcher other) {
return new AndMatcher(this, other);
}
public Matcher or(Matcher other) {
return new OrMatcher(this, other);
}
private static class AndMatcher extends AbstractMatcher implements Serializable {
private final Matcher a, b;
public AndMatcher(Matcher a, Matcher b) {
this.a = a;
this.b = b;
}
public boolean matches(T t) {
return a.matches(t) && b.matches(t);
}
@Override public boolean equals(Object other) {
return other instanceof AndMatcher
&& ((AndMatcher) other).a.equals(a)
&& ((AndMatcher) other).b.equals(b);
}
@Override public int hashCode() {
return 41 * (a.hashCode() ^ b.hashCode());
}
@Override public String toString() {
return "and(" + a + ", " + b + ")";
}
private static final long serialVersionUID = 0;
}
private static class OrMatcher extends AbstractMatcher implements Serializable {
private final Matcher a, b;
public OrMatcher(Matcher a, Matcher b) {
this.a = a;
this.b = b;
}
public boolean matches(T t) {
return a.matches(t) || b.matches(t);
}
@Override public boolean equals(Object other) {
return other instanceof OrMatcher
&& ((OrMatcher) other).a.equals(a)
&& ((OrMatcher) other).b.equals(b);
}
@Override public int hashCode() {
return 37 * (a.hashCode() ^ b.hashCode());
}
@Override public String toString() {
return "or(" + a + ", " + b + ")";
}
private static final long serialVersionUID = 0;
}
}