49 lines
2.1 KiB
Java
49 lines
2.1 KiB
Java
/*
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* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.invoke;
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import java.lang.invoke.MethodHandle;
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/**
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* Private API used inside of java.lang.invoke.MethodHandles.
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* Interface implemented by every object which is produced by
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* {@link java.lang.invoke.MethodHandleProxies#asInterfaceInstance MethodHandleProxies.asInterfaceInstance}.
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* The methods of this interface allow a caller to recover the parameters
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* to {@code asInstance}.
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* This allows applications to repeatedly convert between method handles
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* and SAM objects, without the risk of creating unbounded delegation chains.
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*/
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public interface WrapperInstance {
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/** Produce or recover a target method handle which is behaviorally
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* equivalent to the SAM method of this object.
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*/
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public MethodHandle getWrapperInstanceTarget();
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/** Recover the SAM type for which this object was created.
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*/
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public Class<?> getWrapperInstanceType();
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}
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