org.xnio.SingleOption Maven / Gradle / Ivy
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*
* Copyright 2011 Red Hat, Inc. and/or its affiliates, and individual
* contributors as indicated by the @author tags.
*
* 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.xnio;
import static org.xnio._private.Messages.msg;
/**
* @author David M. Lloyd
*/
final class SingleOption extends Option {
private static final long serialVersionUID = 2449094406108952764L;
private final transient Class type;
private final transient ValueParser parser;
SingleOption(final Class> declClass, final String name, final Class type) {
super(declClass, name);
if (type == null) {
throw msg.nullParameter("type");
}
this.type = type;
parser = Option.getParser(type);
}
public T cast(final Object o) {
return type.cast(o);
}
public T parseValue(final String string, final ClassLoader classLoader) throws IllegalArgumentException {
return parser.parseValue(string, classLoader);
}
}