TypeCapture.java
/*
* Copyright 2010-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.
*/
/*
* Copied from Guava and altered. Original copyright:
*
* Copyright (C) 2012 The Guava Authors
*
* 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.convert;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
/**
* Captures the actual type of {@code T}.
*/
abstract class TypeCapture<T> {
/** Returns the captured type. */
final Type capture() {
Type superclass = getClass().getGenericSuperclass();
Types.checkArgument(superclass instanceof ParameterizedType, "%s isn't parameterized", superclass);
return ((ParameterizedType) superclass).getActualTypeArguments()[0];
}
}