src/jdk.dynalink/share/classes/jdk/dynalink/StandardOperation.java

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/*
   Copyright 2015 Attila Szegedi

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:
   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
   * Neither the name of the copyright holder nor the names of
     contributors may be used to endorse or promote products derived from
     this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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*/

package jdk.dynalink;

/**
 * Defines the standard dynamic operations. The operations {@link #GET} and {@link #SET} must
 * be used as part of a {@link NamespaceOperation}. {@link NamedOperation} can then be further used on these
 * {@link NamespaceOperation}s to bind the name parameter of {@link #GET} and {@link #SET} operations, in which case it
 * disappears from their type signature.
 * {@link NamedOperation} can also be used to decorate {@link #CALL} and {@link #NEW} operations with a
 * diagnostic name, and as such it does not affect their type signature.
 * @since 9
 */
public enum StandardOperation implements Operation {
    /**
     * Get the value from a namespace defined on an object. Call sites with this
     * operation should have a signature of
     * <code>(receiver,&nbsp;name)&rarr;value</code> or
     * <code>(receiver)&rarr;value</code> when used with {@link NamedOperation}, with
     * all parameters and return type being of any type (either primitive or
     * reference). This operation must always be used as part of a {@link NamespaceOperation}.
     */
    GET,
    /**
     * Set the value in a namespace defined on an object. Call sites with this
     * operation should have a signature of
     * <code>(receiver,&nbsp;name,&nbsp;value)&rarr;void</code> or
     * <code>(receiver,&nbsp;value)&rarr;void</code> when used with {@link NamedOperation},
     * with all parameters and return type being of any type (either primitive
     * or reference). This operation must always be used as part of a {@link NamespaceOperation}.
     */
    SET,
    /**
     * Removes the value from a namespace defined on an object. Call sites with this
     * operation should have a signature of
     * <code>(receiver,&nbsp;name)&rarr;void</code> or
     * <code>(receiver)&rarr;void</code> when used with {@link NamedOperation},
     * with all parameters being of any type (either primitive
     * or reference). This operation must always be used as part of a {@link NamespaceOperation}.
     *
     * @since 10
     */
    REMOVE,
    /**
     * Call a callable object. Call sites with this operation should have a
     * signature of <code>(callable,&nbsp;receiver,&nbsp;arguments...)&rarr;value</code>,
     * with all parameters and return type being of any type (either primitive or
     * reference). Typically, the callables are presumed to be methods of an object, so
     * an explicit receiver value is always passed to the callable before the arguments.
     * If a callable has no concept of a receiver, it is free to ignore the value of the
     * receiver argument.
     * The {@code CALL} operation is allowed to be used with a
     * {@link NamedOperation} even though it does not take a name. Using it with
     * a named operation won't affect its signature; the name is solely meant to
     * be used as a diagnostic description for error messages.
     */
    CALL,
    /**
     * Call a constructor object. Call sites with this operation should have a
     * signature of <code>(constructor,&nbsp;arguments...)&rarr;value</code>, with all
     * parameters and return type being of any type (either primitive or
     * reference). The {@code NEW} operation is allowed to be used with a
     * {@link NamedOperation} even though it does not take a name. Using it with
     * a named operation won't affect its signature; the name is solely meant to
     * be used as a diagnostic description for error messages.
     */
    NEW
}