/*
* Copyright 2008 Google Inc.
*
* 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.google.gwt.core.ext.typeinfo;
/**
* Represents a wildcard type argument to a parameterized type.
*/
public interface JWildcardType extends JClassType {
/**
* Type of wildcard bound.
*/
public enum BoundType {
/**
* Used when the declaration explicitly used ? extends Type.
*/
EXTENDS,
/**
* Used when the declaration explicitly used ? super Type.
*/
SUPER,
/**
* Used when the declaration did not specify a bound.
*/
UNBOUND
}
JClassType getBaseType();
BoundType getBoundType();
JClassType getFirstBound();
/**
* Returns the lower bounds of this wildcard type. If no lower bounds were
* declared, an empty array is returned.
*
* @return the lower bounds of this wildcard type
*/
JClassType[] getLowerBounds();
JClassType getUpperBound();
/**
* Returns the upper bounds of this wildcard type. If no upper bounds were
* declared, an array containing {@link Object} is returned.
*
* @return the upper bounds of this wildcard type
*/
JClassType[] getUpperBounds();
}