001/*
002 *  Copyright 2001-2013 Stephen Colebourne
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.joda.beans.impl;
017
018import java.util.NoSuchElementException;
019
020import org.joda.beans.Bean;
021import org.joda.beans.MetaBean;
022import org.joda.beans.MetaProperty;
023import org.joda.beans.PropertyMap;
024
025/**
026 * Basic implementation of {@code MetaBean}.
027 * 
028 * @author Stephen Colebourne
029 */
030public abstract class BasicMetaBean implements MetaBean {
031
032    @Override
033    public PropertyMap createPropertyMap(Bean bean) {
034        return BasicPropertyMap.of(bean);
035    }
036
037    @Override
038    public String beanName() {
039        return beanType().getName();
040    }
041
042    @Override
043    public int metaPropertyCount() {
044        return metaPropertyMap().size();
045    }
046
047    @Override
048    public boolean metaPropertyExists(String propertyName) {
049        return metaPropertyMap().containsKey(propertyName);
050    }
051
052    @SuppressWarnings("unchecked")
053    @Override
054    public <R> MetaProperty<R> metaProperty(String propertyName) {
055        MetaProperty<?> mp = metaPropertyMap().get(propertyName);
056        if (mp == null) {
057            throw new NoSuchElementException("Unknown property: " + propertyName);
058        }
059        return (MetaProperty<R>) mp;
060    }
061
062    @Override
063    public Iterable<MetaProperty<?>> metaPropertyIterable() {
064        return metaPropertyMap().values();
065    }
066
067    //-----------------------------------------------------------------------
068    /**
069     * Returns a string that summarises the meta-bean.
070     * 
071     * @return a summary string, not null
072     */
073    @Override
074    public String toString() {
075        return "MetaBean:" + beanType().getSimpleName();
076    }
077
078}