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## org.apache.axis2.description
Class AxisDescription

    java.lang.Object
      org.apache.axis2.description.AxisDescription

All Implemented Interfaces:
  DescriptionConstants, ParameterInclude

Direct Known Subclasses:
  AxisBinding, AxisBindingMessage, AxisBindingOperation, AxisConfiguration, AxisEndpoint, AxisMessage, AxisOperation, AxisService, AxisServiceGroup

    public abstract class AxisDescription

extends java.lang.Object
implements ParameterInclude, DescriptionConstants

Field Summary
`protected java.util.Map<java.lang.String,AxisModule>` | `engagedModules` Map of modules engaged on this object.
`protected java.util.List<ParameterObserver>` | `parameterObservers` List of ParameterObservers who want to be notified of changes
`protected AxisDescription` | `parent`

Fields inherited from interface org.apache.axis2.description.DescriptionConstants
`CLASSLOADER_KEY, CONTEXTPATH_KEY, EXECUTION_CHAIN_KEY, EXECUTION_FAULT_CHAIN_KEY, EXECUTION_OUT_CHAIN_KEY, IN_FAULTFLOW_KEY, INFLOW_KEY, MESSAGE_RECEIVER_KEY, MODULEREF_KEY, OPERATION_KEY, OUT_FAULTFLOW_KEY, OUTFLOW_KEY, PARAMETER_KEY, PHASES_KEY, SERVICE_CLASS_NAME, STYLE_KEY`

Constructor Summary
`AxisDescription()`

Method Summary
`void` | `addChild(AxisDescription child)`
`void` | `addChild(java.lang.Object key, AxisDescription child)`
`void` | `addParameter(Parameter param)` Method addParameter.
`void` | `addParameter(java.lang.String name, java.lang.Object value)`
`void` | `addParameterObserver(ParameterObserver observer)`
`void` | `applyPolicy()` Applies the policies on the Description Hierarchy recursively.
`void` | `applyPolicy(org.apache.neethi.Policy policy)` This method sets the policy as the default of this AxisDescription instance.
`void` | `deserializeParameters(org.apache.axiom.om.OMElement parameterElement)`
`void` | `disengageModule(AxisModule module)`
`void` | `engageModule(AxisModule axisModule)` Engage a Module at this level
`void` | `engageModule(AxisModule axisModule, AxisDescription source)` Engage a Module at this level, keeping track of which level the engage was originally called from.
`AxisConfiguration` | `getAxisConfiguration()`
`AxisDescription` | `getChild(java.lang.Object key)`
`java.util.Iterator<? extends AxisDescription>` | `getChildren()`
`java.lang.String` | `getDocumentation()`
`org.apache.axiom.om.OMNode` | `getDocumentationNode()`
`java.util.Collection<AxisModule>` | `getEngagedModules()`
`abstract java.lang.Object` | `getKey()`
`Parameter` | `getParameter(java.lang.String name)` If the parameter is found in the current description then the Parameter will be writable else it will be read only
`java.util.ArrayList<Parameter>` | `getParameters()` Gets all the parameters in a given description.
`java.lang.Object` | `getParameterValue(java.lang.String name)`
`AxisDescription` | `getParent()`
`PolicyInclude` | `getPolicyInclude()` Deprecated. As of release 1.4, replaced by `getPolicySubject()`
`PolicySubject` | `getPolicySubject()`
`boolean` | `isEngaged(AxisModule axisModule)`
`boolean` | `isEngaged(java.lang.String moduleName)` Check if a given module is engaged at this level.
`boolean` | `isParameterLocked(java.lang.String parameterName)` Checks whether the parameter is locked at any level.
`boolean` | `isParameterTrue(java.lang.String name)`
`protected void` | `onDisengage(AxisModule module)`
`protected void` | `onEngage(AxisModule module, AxisDescription engager)`
`void` | `removeChild(java.lang.Object key)`
`void` | `removeParameter(Parameter param)`
`void` | `removeParameterObserver(ParameterObserver observer)`
`void` | `setDocumentation(org.apache.axiom.om.OMNode documentation)`
`void` | `setDocumentation(java.lang.String documentation)`
`void` | `setParent(AxisDescription parent)`
`void` | `setPolicyInclude(PolicyInclude policyInclude)` Deprecated. As of release 1.4, if you want to access the policy cache of a particular AxisDescription object use `getPolicySubject()` instead.

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

Field Detail

### parent

    protected AxisDescription parent

### engagedModules

    protected java.util.Map<java.lang.String,AxisModule> engagedModules

  Map of modules engaged on this object. The key is the archive name as defined by `AxisModule.getArchiveName()`.

### parameterObservers

    protected java.util.List<ParameterObserver> parameterObservers

  List of ParameterObservers who want to be notified of changes

Constructor Detail

### AxisDescription

    public AxisDescription()

Method Detail

### addParameterObserver

    public void addParameterObserver(ParameterObserver observer)

### removeParameterObserver

    public void removeParameterObserver(ParameterObserver observer)

### addParameter

    public void addParameter(Parameter param)
                      throws AxisFault

  Description copied from interface: `ParameterInclude`
  Method addParameter.

  Specified by:
    `addParameter` in interface `ParameterInclude`
  Throws:
    `AxisFault`

### addParameter

    public void addParameter(java.lang.String name,
                             java.lang.Object value)
                      throws AxisFault

  Throws:
    `AxisFault`

### removeParameter

    public void removeParameter(Parameter param)
                         throws AxisFault

  Specified by:
    `removeParameter` in interface `ParameterInclude`
  Throws:
    `AxisFault`

### deserializeParameters

    public void deserializeParameters(org.apache.axiom.om.OMElement parameterElement)
                               throws AxisFault

  Specified by:
    `deserializeParameters` in interface `ParameterInclude`
  Throws:
    `AxisFault`

### getParameter

    public Parameter getParameter(java.lang.String name)

  If the parameter is found in the current description then the Parameter will be writable else it will be read only

  Specified by:
    `getParameter` in interface `ParameterInclude`
  Parameters:
    `name` - name of Parameter to retrieve
  Returns:
    the Parameter, if found anywhere in the stack, or null if not

### getParameterValue

    public java.lang.Object getParameterValue(java.lang.String name)

### isParameterTrue

    public boolean isParameterTrue(java.lang.String name)

### getParameters

    public java.util.ArrayList<Parameter> getParameters()

  Description copied from interface: `ParameterInclude`
  Gets all the parameters in a given description.

  Specified by:
    `getParameters` in interface `ParameterInclude`
  Returns:
    Returns ArrayList.

### isParameterLocked

    public boolean isParameterLocked(java.lang.String parameterName)

  Description copied from interface: `ParameterInclude`
  Checks whether the parameter is locked at any level.

  Specified by:
    `isParameterLocked` in interface `ParameterInclude`

### getDocumentation

    public java.lang.String getDocumentation()

### getDocumentationNode

    public org.apache.axiom.om.OMNode getDocumentationNode()

### setDocumentation

    public void setDocumentation(org.apache.axiom.om.OMNode documentation)

### setDocumentation

    public void setDocumentation(java.lang.String documentation)

### setParent

    public void setParent(AxisDescription parent)

### getParent

    public AxisDescription getParent()

### setPolicyInclude

    public void setPolicyInclude(PolicyInclude policyInclude)

  Deprecated. As of release 1.4, if you want to access the policy cache of a particular AxisDescription object use `getPolicySubject()` instead.

  Parameters:
    `policyInclude` - PolicyInclude value
  See Also:
    `setPolicyInclude(PolicyInclude)`

### getPolicyInclude

    public PolicyInclude getPolicyInclude()

  Deprecated. As of release 1.4, replaced by `getPolicySubject()`

  Returns:
    the active PolicyInclue
  See Also:
    `getPolicySubject()`

### addChild

    public void addChild(AxisDescription child)

### addChild

    public void addChild(java.lang.Object key,
                         AxisDescription child)

### getChildren

    public java.util.Iterator<? extends AxisDescription> getChildren()

### getChild

    public AxisDescription getChild(java.lang.Object key)

### removeChild

    public void removeChild(java.lang.Object key)

### applyPolicy

    public void applyPolicy(org.apache.neethi.Policy policy)
                     throws AxisFault

  This method sets the policy as the default of this AxisDescription instance. Further more this method does the followings.

  (1) Engage whatever modules necessary to execute new the effective policy of this AxisDescription instance. (2) Disengage whatever modules that are not necessary to execute the new effective policy of this AxisDescription instance. (3) Check whether each module can execute the new effective policy of this AxisDescription instance. (4) If not throw an AxisFault to notify the user. (5) Else notify each module about the new effective policy.

  Parameters:
    `policy` - the new policy of this AxisDescription instance. The effective policy is the merge of this argument with effective policy of parent of this AxisDescription.
  Throws:
    `AxisFault` - if any module is unable to execute the effective policy of this AxisDescription instance successfully or no module to execute some portion (one or more PrimtiveAssertions ) of that effective policy.

### applyPolicy

    public void applyPolicy()
                     throws AxisFault

  Applies the policies on the Description Hierarchy recursively.

  Throws:
    `AxisFault` - an error occurred applying the policy

### getAxisConfiguration

    public AxisConfiguration getAxisConfiguration()

### getKey

    public abstract java.lang.Object getKey()

### engageModule

    public void engageModule(AxisModule axisModule)
                      throws AxisFault

  Engage a Module at this level

  Parameters:
    `axisModule` - the Module to engage
  Throws:
    `AxisFault` - if there's a problem engaging

### engageModule

    public void engageModule(AxisModule axisModule,
                             AxisDescription source)
                      throws AxisFault

  Engage a Module at this level, keeping track of which level the engage was originally called from. This is meant for internal use only.

  Parameters:
    `axisModule` - module to engage
    `source` - the AxisDescription which originally called engageModule()
  Throws:
    `AxisFault` - if there's a problem engaging

### onEngage

    protected void onEngage(AxisModule module,
                            AxisDescription engager)
                     throws AxisFault

  Throws:
    `AxisFault`

### getEngagedModules

    public java.util.Collection<AxisModule> getEngagedModules()

### isEngaged

    public boolean isEngaged(java.lang.String moduleName)

  Check if a given module is engaged at this level.

  Parameters:
    `moduleName` - module to investigate.
  Returns:
    true if engaged, false if not. TODO: Handle versions? isEngaged("addressing") should be true even for versioned modulename...

### isEngaged

    public boolean isEngaged(AxisModule axisModule)

### disengageModule

    public void disengageModule(AxisModule module)
                         throws AxisFault

  Throws:
    `AxisFault`

### onDisengage

    protected void onDisengage(AxisModule module)
                        throws AxisFault

  Throws:
    `AxisFault`

### getPolicySubject

    public PolicySubject getPolicySubject()

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