com.oracle.webservices.api.message.DistributedPropertySet Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.oracle.webservices.api.message;
import java.util.Map;
import com.sun.istack.Nullable;
/**
* {@link PropertySet} that combines properties exposed from multiple
* {@link PropertySet}s into one.
*
*
* This implementation allows one {@link PropertySet} to assemble
* all properties exposed from other "satellite" {@link PropertySet}s.
* (A satellite may itself be a {@link DistributedPropertySet}, so
* in general this can form a tree.)
*
*
* This is useful for JAX-WS because the properties we expose to the application
* are contributed by different pieces, and therefore we'd like each of them
* to have a separate {@link PropertySet} implementation that backs up
* the properties. For example, this allows FastInfoset to expose its
* set of properties to {@link RequestContext} by using a strongly-typed fields.
*
*
* This is also useful for a client-side transport to expose a bunch of properties
* into {@link ResponseContext}. It simply needs to create a {@link PropertySet}
* object with methods for each property it wants to expose, and then add that
* {@link PropertySet} to {@link Packet}. This allows property values to be
* lazily computed (when actually asked by users), thus improving the performance
* of the typical case where property values are not asked.
*
*
* A similar benefit applies on the server-side, for a transport to expose
* a bunch of properties to {@link WebServiceContext}.
*
*
* To achieve these benefits, access to {@link DistributedPropertySet} is slower
* compared to {@link PropertySet} (such as get/set), while adding a satellite
* object is relatively fast.
*
* @author Kohsuke Kawaguchi
*/
public interface DistributedPropertySet extends com.oracle.webservices.api.message.PropertySet {
public @Nullable T getSatellite(Class satelliteClass);
public Map, com.oracle.webservices.api.message.PropertySet> getSatellites();
public void addSatellite(com.oracle.webservices.api.message.PropertySet satellite);
public void addSatellite(Class keyClass, com.oracle.webservices.api.message.PropertySet satellite);
public void removeSatellite(com.oracle.webservices.api.message.PropertySet satellite);
public void copySatelliteInto(com.oracle.webservices.api.message.MessageContext r);
}