1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/rt/emul/compact/src/main/java/sun/invoke/WrapperInstance.java	Sat Aug 09 11:11:13 2014 +0200
     1.3 @@ -0,0 +1,48 @@
     1.4 +/*
     1.5 + * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package sun.invoke;
    1.30 +
    1.31 +import java.lang.invoke.MethodHandle;
    1.32 +
    1.33 +/**
    1.34 + * Private API used inside of java.lang.invoke.MethodHandles.
    1.35 + * Interface implemented by every object which is produced by
    1.36 + * {@link java.lang.invoke.MethodHandleProxies#asInterfaceInstance MethodHandleProxies.asInterfaceInstance}.
    1.37 + * The methods of this interface allow a caller to recover the parameters
    1.38 + * to {@code asInstance}.
    1.39 + * This allows applications to repeatedly convert between method handles
    1.40 + * and SAM objects, without the risk of creating unbounded delegation chains.
    1.41 + */
    1.42 +public interface WrapperInstance {
    1.43 +    /** Produce or recover a target method handle which is behaviorally
    1.44 +     *  equivalent to the SAM method of this object.
    1.45 +     */
    1.46 +    public MethodHandle getWrapperInstanceTarget();
    1.47 +    /** Recover the SAM type for which this object was created.
    1.48 +     */
    1.49 +    public Class<?> getWrapperInstanceType();
    1.50 +}
    1.51 +