/*
* JBoss, Home of Professional Open Source
*
* Copyright 2011 Red Hat, Inc. and/or its affiliates, and individual
* contributors as indicated by the @author tags.
*
* 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 org.xnio;
import java.io.
Serializable;
import static org.xnio._private.
Messages.
msg;
/**
* An immutable property represented by a key and value.
*
* @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
*/
public final class
Property implements
Serializable {
private static final long
serialVersionUID = -4958518978461712277L;
private final
String key;
private final
Object value;
private
Property(final
String key, final
Object value) {
if (
key == null)
throw
msg.
nullParameter("key");
if (
value == null)
throw
msg.
nullParameter("value");
this.
key =
key;
this.
value =
value;
}
private
Property(final
String key, final
String value) {
this(
key, (
Object)
value);
}
/**
* Get the key of this key/value Property.
*
* @return the key.
*/
public
String getKey() {
return
key;
}
/**
* Get the value of this key/value Property.
*
* @return the value.
*/
public
Object getValue() {
return
value;
}
/**
* Get the value of this key/value Property.
*
* @return the value.
*/
public
String getValue$$bridger() {
// If the value is not a String we want a ClassCastException to indicate the error.
return (
String)
value;
}
/**
* Get the {@link String} representation of this property.
*
* @return the {@link String} representation of this property.
*/
@
Override
public
String toString() {
return "(" +
key + "=>" +
value.
toString() + ")";
}
/**
* Get the hash code for this Property.
*
* @return the hash code.
*/
@
Override
public int
hashCode() {
return
key.
hashCode() * 7 +
value.
hashCode();
}
/**
* Determine if this Property equals another Property.
*
* @param obj the other Property to compare.
* @return true if the two Properties are equal.
*/
@
Override
public boolean
equals(
Object obj) {
return
obj instanceof
Property &&
equals((
Property)
obj);
}
/**
* Determine if this Property equals another Property.
*
* @param other the other Property to compare.
* @return true if the two Properties are equal.
*/
public boolean
equals(
Property other) {
return
key.
equals(
other.
key) &&
value.
equals(
other.
value);
}
/**
* Create a new property for the specified key and value.
*
* @param key the key for new Property
* @param value the value for the new Property
* @return the newly created Property
*/
public static
Property of(final
String key, final
Object value) {
return new
Property(
key,
value);
}
/**
* Create a new property for the specified key and value.
*
* @param key the key for new Property
* @param value the value for the new Property
* @return the newly created Property
*/
public static
Property of(final
String key, final
String value) {
return new
Property(
key,
value);
}
}