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/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.data.util;
import com.vaadin.data.Property;
/**
* Property descriptor that is able to create nested property instances for a
* bean.
*
* The property is specified in the dotted notation, e.g. "address.street", and
* can contain multiple levels of nesting.
*
* @param <BT>
* bean type
*
* @since 6.6
*/
public class NestedPropertyDescriptor<BT> implements
VaadinPropertyDescriptor<BT> {
private final String name;
private final Class<?> propertyType;
/**
* Creates a property descriptor that can create MethodProperty instances to
* access the underlying bean property.
*
* @param name
* of the property in a dotted path format, e.g. "address.street"
* @param beanType
* type (class) of the top-level bean
* @throws IllegalArgumentException
* if the property name is invalid
*/
public NestedPropertyDescriptor(String name, Class<BT> beanType)
throws IllegalArgumentException {
this.name = name;
NestedMethodProperty<?> property = new NestedMethodProperty<Object>(
beanType, name);
this.propertyType = property.getType();
}
@Override
public String getName() {
return name;
}
@Override
public Class<?> getPropertyType() {
return propertyType;
}
@Override
public Property<?> createProperty(BT bean) {
return new NestedMethodProperty<Object>(bean, name);
}
}
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