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## mx4j.remote
Class ConnectionResolver

    java.lang.Object
      mx4j.remote.ProviderHelper
          mx4j.remote.ConnectionResolver

Direct Known Subclasses:
  HTTPResolver, Resolver, Resolver

public abstract class ConnectionResolver
extends ProviderHelper

ConnectionResolver handles the details of creating connections for different protocols. Subclasses for the specific protocol are instantiated using a mechanism very similar to the one specified by `JMXConnectorFactory`. Here a subclass has a fully qualified name specified like this: .resolver..Resolver, for example `Resolver` This class is used from both the client and the server. The former uses it to lookup stubs or connections to the server side; the latter uses it to create server instances and make them availale to clients, for example via JNDI. The client and server methods have not been splitted into 2 different interfaces because most of the times they share common code, although it may have been a better design.

Version:
  $Revision: 1.6 $

Constructor Summary
`ConnectionResolver()`

Method Summary
`abstract java.lang.Object` | `bindClient(java.lang.Object client, java.util.Map environment)` Connects the client returned by `lookupClient(javax.management.remote.JMXServiceURL, java.util.Map)` to the server side.
`abstract javax.management.remote.JMXServiceURL` | `bindServer(java.lang.Object server, javax.management.remote.JMXServiceURL url, java.util.Map environment)` Binds the server created by `createServer(javax.management.remote.JMXServiceURL, java.util.Map)` to a place specified by the JMXServiceURL.
`abstract java.lang.Object` | `createServer(javax.management.remote.JMXServiceURL url, java.util.Map environment)` Creates an instance of the server as specified in the given JMXServiceURL.
`abstract void` | `destroyServer(java.lang.Object server, javax.management.remote.JMXServiceURL url, java.util.Map environment)` Destroys the server created by `createServer(javax.management.remote.JMXServiceURL, java.util.Map)`, by cleaning up resources it may have requested at creation time
`abstract java.lang.Object` | `lookupClient(javax.management.remote.JMXServiceURL url, java.util.Map environment)` Looks up a connection with the server side as specified in the given JMXServiceURL.
`static ConnectionResolver` | `newConnectionResolver(java.lang.String proto, java.util.Map environment)` Returns a subclass of ConnectionResolver for the specified protocol.
`abstract void` | `unbindServer(java.lang.Object server, javax.management.remote.JMXServiceURL address, java.util.Map environment)` Unbinds the server bound by `bindServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)` from the place specified by the JMXServiceURL.

Methods inherited from class mx4j.remote.ProviderHelper
`constructClassName, findSystemPackageList, getLogger, loadClass, normalizeProtocol`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ConnectionResolver

    public ConnectionResolver()

Method Detail

### newConnectionResolver

    public static ConnectionResolver newConnectionResolver(java.lang.String proto,
                                                           java.util.Map environment)

  Returns a subclass of ConnectionResolver for the specified protocol.

### lookupClient

    public abstract java.lang.Object lookupClient(javax.management.remote.JMXServiceURL url,
                                                  java.util.Map environment)
                                           throws java.io.IOException

  Looks up a connection with the server side as specified in the given JMXServiceURL. This method is used in implementations of `JMXConnector.connect()`.

  Throws:
    `java.io.IOException`
  See Also:
    `bindClient(java.lang.Object, java.util.Map)`

### bindClient

    public abstract java.lang.Object bindClient(java.lang.Object client,
                                                java.util.Map environment)
                                         throws java.io.IOException

  Connects the client returned by `lookupClient(javax.management.remote.JMXServiceURL, java.util.Map)` to the server side.

  Returns:
    An object of the same type as the client passed in; normally the client object itself
  Throws:
    `java.io.IOException`

### createServer

    public abstract java.lang.Object createServer(javax.management.remote.JMXServiceURL url,
                                                  java.util.Map environment)
                                           throws java.io.IOException

  Creates an instance of the server as specified in the given JMXServiceURL. It is only a factory method, it should just return a fresh instance of the server; other methods are responsible to make it available to clients (for example exporting it). This method is used in implementations of `JMXConnectorServerMBean.start()`.

  Throws:
    `java.io.IOException`
  See Also:
    `bindServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)`, `destroyServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)`

### bindServer

    public abstract javax.management.remote.JMXServiceURL bindServer(java.lang.Object server,
                                                                     javax.management.remote.JMXServiceURL url,
                                                                     java.util.Map environment)
                                                              throws java.io.IOException

  Binds the server created by `createServer(javax.management.remote.JMXServiceURL, java.util.Map)` to a place specified by the JMXServiceURL.

  Returns:
    a new JMXServiceURL that specifies where the server has been bound to.
  Throws:
    `java.io.IOException`
  See Also:
    `unbindServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)`

### unbindServer

    public abstract void unbindServer(java.lang.Object server,
                                      javax.management.remote.JMXServiceURL address,
                                      java.util.Map environment)
                               throws java.io.IOException

  Unbinds the server bound by `bindServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)` from the place specified by the JMXServiceURL.

  Throws:
    `java.io.IOException`
  See Also:
    `destroyServer(java.lang.Object, javax.management.remote.JMXServiceURL, java.util.Map)`

### destroyServer

    public abstract void destroyServer(java.lang.Object server,
                                       javax.management.remote.JMXServiceURL url,
                                       java.util.Map environment)
                                throws java.io.IOException

  Destroys the server created by `createServer(javax.management.remote.JMXServiceURL, java.util.Map)`, by cleaning up resources it may have requested at creation time

  Throws:
    `java.io.IOException`
  See Also:
    `createServer(javax.management.remote.JMXServiceURL, java.util.Map)`

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