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## org.apache.axis.providers.java
Class JavaProvider

    java.lang.Object
      org.apache.axis.handlers.BasicHandler
          org.apache.axis.providers.BasicProvider
              org.apache.axis.providers.java.JavaProvider

All Implemented Interfaces:
  Handler, java.io.Serializable

Direct Known Subclasses:
  MsgProvider, RPCProvider

public abstract class JavaProvider
extends BasicProvider

Base class for Java dispatching. Fetches various fields out of envelope, looks up service object (possibly using session state), and delegates envelope body processing to subclass via abstract processMessage method.

Author:
  Doug Davis (dug@us.ibm.com), Carl Woolf (cwoolf@macromedia.com)
See Also:
  Serialized Form

Field Summary
`protected static org.apache.commons.logging.Log` | `entLog`
`protected static org.apache.commons.logging.Log` | `log`
`static java.lang.String` | `OPTION_ALLOWEDMETHODS`
`static java.lang.String` | `OPTION_CLASSNAME`
`static java.lang.String` | `OPTION_SCOPE`

Fields inherited from class org.apache.axis.providers.BasicProvider
`OPTION_EXTRACLASSES, OPTION_WSDL_INPUTSCHEMA, OPTION_WSDL_PORTTYPE, OPTION_WSDL_SERVICEELEMENT, OPTION_WSDL_SERVICEPORT, OPTION_WSDL_SOAPACTION_MODE, OPTION_WSDL_TARGETNAMESPACE`

Fields inherited from class org.apache.axis.handlers.BasicHandler
`makeLockable, name, options`

Constructor Summary
`JavaProvider()`

Method Summary
`protected java.lang.Class` | `getServiceClass(java.lang.String clsName, SOAPService service, MessageContext msgContext)` Returns the Class info about the service class.
`protected java.lang.String` | `getServiceClassName(Handler service)` Return the class name of the service
`protected java.lang.String` | `getServiceClassNameOptionName()` Return the option in the configuration that contains the service class name
`java.lang.Object` | `getServiceObject(MessageContext msgContext, Handler service, java.lang.String clsName, IntHolder scopeHolder)` Get the service object whose method actually provides the service.
`void` | `initServiceDesc(SOAPService service, MessageContext msgContext)` Fill in a service description with the correct impl class and typemapping set.
`void` | `invoke(MessageContext msgContext)` Invoke the message by obtaining various common fields, looking up the service object (via getServiceObject), and actually processing the message (via processMessage).
`protected java.lang.Object` | `makeNewServiceObject(MessageContext msgContext, java.lang.String clsName)` Default java service object comes from simply instantiating the class wrapped in jc
`abstract void` | `processMessage(MessageContext msgContext, SOAPEnvelope reqEnv, SOAPEnvelope resEnv, java.lang.Object obj)` Process the current message.

Methods inherited from class org.apache.axis.providers.BasicProvider
`addOperation, generateWSDL, getOperationName, getOperationNames, getOperationQNames`

Methods inherited from class org.apache.axis.handlers.BasicHandler
`canHandleBlock, cleanup, getDeploymentData, getName, getOption, getOptions, getUnderstoodHeaders, init, initHashtable, onFault, setName, setOption, setOptionDefault, setOptions, setOptionsLockable`

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

Field Detail

### log

    protected static org.apache.commons.logging.Log log

### entLog

    protected static org.apache.commons.logging.Log entLog

### OPTION_CLASSNAME

    public static final java.lang.String OPTION_CLASSNAME

See Also:
  Constant Field Values

### OPTION_ALLOWEDMETHODS

    public static final java.lang.String OPTION_ALLOWEDMETHODS

See Also:
  Constant Field Values

### OPTION_SCOPE

    public static final java.lang.String OPTION_SCOPE

See Also:
  Constant Field Values

Constructor Detail

### JavaProvider

    public JavaProvider()

Method Detail

### getServiceObject

    public java.lang.Object getServiceObject(MessageContext msgContext,
                                             Handler service,
                                             java.lang.String clsName,
                                             IntHolder scopeHolder)
                                      throws java.lang.Exception

  Get the service object whose method actually provides the service. May look up in session table.

  Throws:
    `java.lang.Exception`

### processMessage

    public abstract void processMessage(MessageContext msgContext,
                                        SOAPEnvelope reqEnv,
                                        SOAPEnvelope resEnv,
                                        java.lang.Object obj)
                                 throws java.lang.Exception

  Process the current message. Side-effect resEnv to create return value.

  Parameters:
    `msgContext` - self-explanatory
    `reqEnv` - the request envelope
    `resEnv` - the response envelope
    `obj` - the service object itself
  Throws:
    `java.lang.Exception`

### invoke

    public void invoke(MessageContext msgContext)
                throws AxisFault

  Invoke the message by obtaining various common fields, looking up the service object (via getServiceObject), and actually processing the message (via processMessage).

  Parameters:
    `msgContext` - the `MessageContext` to process with this `Handler`.
  Throws:
    `AxisFault` - if the handler encounters an error

### makeNewServiceObject

    protected java.lang.Object makeNewServiceObject(MessageContext msgContext,
                                                    java.lang.String clsName)
                                             throws java.lang.Exception

  Default java service object comes from simply instantiating the class wrapped in jc

  Throws:
    `java.lang.Exception`

### getServiceClassName

    protected java.lang.String getServiceClassName(Handler service)

  Return the class name of the service

### getServiceClassNameOptionName

    protected java.lang.String getServiceClassNameOptionName()

  Return the option in the configuration that contains the service class name

### getServiceClass

    protected java.lang.Class getServiceClass(java.lang.String clsName,
                                              SOAPService service,
                                              MessageContext msgContext)
                                       throws AxisFault

  Returns the Class info about the service class.

  Throws:
    `AxisFault`

### initServiceDesc

    public void initServiceDesc(SOAPService service,
                                MessageContext msgContext)
                         throws AxisFault

  Fill in a service description with the correct impl class and typemapping set. This uses methods that can be overridden by other providers (like the EJBProvider) to get the class from the right place.

  Specified by:
    `initServiceDesc` in class `BasicProvider`
  Throws:
    `AxisFault`

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Copyright © 2003 Apache Web Services Project. All Rights Reserved.