org.joda.beans.impl.BasicMetaProperty Maven / Gradle / Ivy
/*
* Copyright 2001-present Stephen Colebourne
*
* 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.joda.beans.impl;
import org.joda.beans.MetaProperty;
/**
* An abstract base meta-property.
*
* @param the type of the property content
*/
public abstract class BasicMetaProperty
implements MetaProperty
{
/** The name of the property. */
private final String name;
/**
* Constructor.
*
* @param propertyName the property name, not empty
*/
protected BasicMetaProperty(String propertyName) {
if (propertyName == null || propertyName.length() == 0) {
throw new NullPointerException("Property name must not be null or empty");
}
this.name = propertyName;
}
//-----------------------------------------------------------------------
@Override
public String name() {
return name;
}
//-----------------------------------------------------------------------
@Override
public boolean equals(Object obj) {
if (obj instanceof MetaProperty) {
MetaProperty other = (MetaProperty) obj;
return name().equals(other.name()) && declaringType().equals(other.declaringType());
}
return false;
}
@Override
public int hashCode() {
return name().hashCode() ^ declaringType().hashCode();
}
/**
* Returns a string that summarises the meta-property.
*
* @return a summary string, not null
*/
@Override
public String toString() {
return declaringType().getSimpleName() + ":" + name();
}
}