## org.apache.catalina
Interface DefaultContext

All Known Implementing Classes:
  StandardDefaultContext

public interface DefaultContext

Used to store the default configuration a Host will use when creating a Context. A Context configured in server.xml can override these defaults by setting the Context attribute `override="true"`.

Version:
  $Revision: 1.6 $ $Date: 2004/05/26 15:26:06 $
Author:
  Glenn Nielsen, Remy Maucherat

Method Summary
`void` `addApplicationListener(java.lang.String listener)` Add a new Listener class name to the set of Listeners configured for this application.
`void` `addApplicationParameter(ApplicationParameter parameter)` Add a new application parameter for this application.
`void` `addEjb(ContextEjb ejb)` Add an EJB resource reference for this web application.
`void` `addEnvironment(ContextEnvironment environment)` Add an environment entry for this web application.
`void` `addInstanceListener(java.lang.String listener)` Add the classname of an InstanceListener to be added to each Wrapper appended to this Context.
`void` `addParameter(java.lang.String name, java.lang.String value)` Add a new context initialization parameter, replacing any existing value for the specified name.
`void` `addPropertyChangeListener(java.beans.PropertyChangeListener listener)` Add a property change listener to this component.
`void` `addResource(ContextResource resource)` Add a resource reference for this web application.
`void` `addResourceEnvRef(java.lang.String name, java.lang.String type)` Add a resource environment reference for this web application.
`void` `addResourceLink(ContextResourceLink resourceLink)` Add a resource link for this web application.
`void` `addResourceParams(ResourceParams resourceParameters)` Add resource parameters for this web application.
`void` `addWrapperLifecycle(java.lang.String listener)` Add the classname of a LifecycleListener to be added to each Wrapper appended to this Context.
`void` `addWrapperListener(java.lang.String listener)` Add the classname of a ContainerListener to be added to each Wrapper appended to this Context.
`java.lang.String[]` `findApplicationListeners()` Return the set of application listener class names configured for this application.
`ApplicationParameter[]` `findApplicationParameters()` Return the set of application parameters for this application.
`ContextEjb` `findEjb(java.lang.String name)` Return the EJB resource reference with the specified name, if any; otherwise, return `null`.
`ContextEjb[]` `findEjbs()` Return the defined EJB resource references for this application.
`ContextEnvironment` `findEnvironment(java.lang.String name)` Return the environment entry with the specified name, if any; otherwise, return `null`.
`ContextEnvironment[]` `findEnvironments()` Return the set of defined environment entries for this web application.
`java.lang.String[]` `findInstanceListeners()` Return the set of InstanceListener classes that will be added to newly created Wrappers automatically.
`java.lang.String` `findParameter(java.lang.String name)` Return the value for the specified context initialization parameter name, if any; otherwise return `null`.
`java.lang.String[]` `findParameters()` Return the names of all defined context initialization parameters for this Context.
`ContextResource` `findResource(java.lang.String name)` Return the resource reference with the specified name, if any; otherwise return `null`.
`java.lang.String` `findResourceEnvRef(java.lang.String name)` Return the resource environment reference type for the specified name, if any; otherwise return `null`.
`java.lang.String[]` `findResourceEnvRefs()` Return the set of resource environment reference names for this web application.
`ContextResourceLink` `findResourceLink(java.lang.String name)` Return the resource link with the specified name, if any; otherwise return `null`.
`ContextResourceLink[]` `findResourceLinks()` Return the defined resource links for this application.
`ResourceParams[]` `findResourceParams()` Return the set of defined resource parameters for this web application.
`ContextResource[]` `findResources()` Return the defined resource references for this application.
`java.lang.String[]` `findWrapperLifecycles()` Return the set of LifecycleListener classes that will be added to newly created Wrappers automatically.
`java.lang.String[]` `findWrapperListeners()` Return the set of ContainerListener classes that will be added to newly created Wrappers automatically.
`boolean` `getCookies()` Return the "use cookies for session ids" flag.
`boolean` `getCrossContext()` Return the "allow crossing servlet contexts" flag.
`java.lang.String` `getInfo()` Return descriptive information about this Container implementation and the corresponding version number, in the format `<description>/<version>`.
`Loader` `getLoader()` Return the Loader with which this Container is associated.
`Manager` `getManager()` Return the Manager with which this Container is associated.
`java.lang.String` `getName()` Return the name of this DefaultContext
`NamingResources` `getNamingResources()` Return the naming resources associated with this web application.
`Container` `getParent()` Return the Container for which this Container is a child, if there is one.
`boolean` `getReloadable()` Return the reloadable flag for this web application.
`javax.naming.directory.DirContext` `getResources()` Get the resources DirContext object with which this Container is associated.
`java.lang.String` `getWrapperClass()` Return the Java class name of the Wrapper implementation used for servlets registered in this Context.
`void` `importDefaultContext(Context context)` Import the configuration from the DefaultContext into current Context.
`void` `removeApplicationListener(java.lang.String listener)` Remove the specified application listener class from the set of listeners for this application.
`void` `removeApplicationParameter(java.lang.String name)` Remove the application parameter with the specified name from the set for this application.
`void` `removeEjb(java.lang.String name)` Remove any EJB resource reference with the specified name.
`void` `removeEnvironment(java.lang.String name)` Remove any environment entry with the specified name.
`void` `removeInstanceListener(java.lang.String listener)` Remove a class name from the set of InstanceListener classes that will be added to newly created Wrappers.
`void` `removeParameter(java.lang.String name)` Remove the context initialization parameter with the specified name, if it exists; otherwise, no action is taken.
`void` `removePropertyChangeListener(java.beans.PropertyChangeListener listener)` Remove a property change listener from this component.
`void` `removeResource(java.lang.String name)` Remove any resource reference with the specified name.
`void` `removeResourceEnvRef(java.lang.String name)` Remove any resource environment reference with the specified name.
`void` `removeResourceLink(java.lang.String name)` Remove any resource link with the specified name.
`void` `removeWrapperLifecycle(java.lang.String listener)` Remove a class name from the set of LifecycleListener classes that will be added to newly created Wrappers.
`void` `removeWrapperListener(java.lang.String listener)` Remove a class name from the set of ContainerListener classes that will be added to newly created Wrappers.
`void` `setCookies(boolean cookies)` Set the "use cookies for session ids" flag.
`void` `setCrossContext(boolean crossContext)` Set the "allow crossing servlet contexts" flag.
`void` `setLoader(Loader loader)` Set the Loader with which this Context is associated.
`void` `setManager(Manager manager)` Set the Manager with which this Container is associated.
`void` `setName(java.lang.String name)` Set the name of the default context.
`void` `setParent(Container container)` Set the parent Container to which this Container is being added as a child.
`void` `setReloadable(boolean reloadable)` Set the reloadable flag for this web application.
`void` `setResources(javax.naming.directory.DirContext resources)` Set the resources DirContext object with which this Container is associated.
`void` `setWrapperClass(java.lang.String wrapperClass)` Set the Java class name of the Wrapper implementation used for servlets registered in this Context.

Method Detail

### getCookies

    public boolean getCookies()

  Return the "use cookies for session ids" flag.

### setCookies

    public void setCookies(boolean cookies)

  Set the "use cookies for session ids" flag.

  Parameters:
    `cookies` - The new flag

### getCrossContext

    public boolean getCrossContext()

  Return the "allow crossing servlet contexts" flag.

### setCrossContext

    public void setCrossContext(boolean crossContext)

  Set the "allow crossing servlet contexts" flag.

  Parameters:
    `crossContext` - The new cross contexts flag

### getInfo

    public java.lang.String getInfo()

  Return descriptive information about this Container implementation and the corresponding version number, in the format `<description>/<version>`.

### getReloadable

    public boolean getReloadable()

  Return the reloadable flag for this web application.

### setReloadable

    public void setReloadable(boolean reloadable)

  Set the reloadable flag for this web application.

  Parameters:
    `reloadable` - The new reloadable flag

### getWrapperClass

    public java.lang.String getWrapperClass()

  Return the Java class name of the Wrapper implementation used for servlets registered in this Context.

### setWrapperClass

    public void setWrapperClass(java.lang.String wrapperClass)

  Set the Java class name of the Wrapper implementation used for servlets registered in this Context.

  Parameters:
    `wrapperClass` - The new wrapper class

### setResources

    public void setResources(javax.naming.directory.DirContext resources)

  Set the resources DirContext object with which this Container is associated.

  Parameters:
    `resources` - The newly associated DirContext

### getResources

    public javax.naming.directory.DirContext getResources()

  Get the resources DirContext object with which this Container is associated.

### getLoader

    public Loader getLoader()

  Return the Loader with which this Container is associated. If there is no associated Loader return `null`.

### setLoader

    public void setLoader(Loader loader)

  Set the Loader with which this Context is associated.

  Parameters:
    `loader` - The newly associated loader

### getManager

    public Manager getManager()

  Return the Manager with which this Container is associated. If there is no associated Manager return `null`.

### setManager

    public void setManager(Manager manager)

  Set the Manager with which this Container is associated.

  Parameters:
    `manager` - The newly associated Manager

### getNamingResources

    public NamingResources getNamingResources()

  Return the naming resources associated with this web application.

### getName

    public java.lang.String getName()

  Return the name of this DefaultContext

### setName

    public void setName(java.lang.String name)

  Set the name of the default context.

  Parameters:
    `name` - The new name

### getParent

    public Container getParent()

  Return the Container for which this Container is a child, if there is one. If there is no defined parent, return `null`.

### setParent

    public void setParent(Container container)

  Set the parent Container to which this Container is being added as a child. This Container may refuse to become attached to the specified Container by throwing an exception.

  Parameters:
    `container` - Container to which this Container is being added as a child
  Throws:
    `java.lang.IllegalArgumentException` - if this Container refuses to become attached to the specified Container

### addApplicationListener

    public void addApplicationListener(java.lang.String listener)

  Add a new Listener class name to the set of Listeners configured for this application.

  Parameters:
    `listener` - Java class name of a listener class

### addApplicationParameter

    public void addApplicationParameter(ApplicationParameter parameter)

  Add a new application parameter for this application.

  Parameters:
    `parameter` - The new application parameter

### addEjb

    public void addEjb(ContextEjb ejb)

  Add an EJB resource reference for this web application.

  Parameters:
    `ejb` - New EJB resource reference

### addEnvironment

    public void addEnvironment(ContextEnvironment environment)

  Add an environment entry for this web application.

  Parameters:
    `environment` - New environment entry

### addResourceParams

    public void addResourceParams(ResourceParams resourceParameters)

  Add resource parameters for this web application.

  Parameters:
    `resourceParameters` - New resource parameters

### addInstanceListener

    public void addInstanceListener(java.lang.String listener)

  Add the classname of an InstanceListener to be added to each Wrapper appended to this Context.

  Parameters:
    `listener` - Java class name of an InstanceListener class

### addParameter

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

  Add a new context initialization parameter, replacing any existing value for the specified name.

  Parameters:
    `name` - Name of the new parameter
    `value` - Value of the new parameter
  Throws:
    `java.lang.IllegalArgumentException` - if the name or value is missing, or if this context initialization parameter has already been registered

### addPropertyChangeListener

    public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

  Add a property change listener to this component.

  Parameters:
    `listener` - The listener to add

### addResource

    public void addResource(ContextResource resource)

  Add a resource reference for this web application.

  Parameters:
    `resource` - New resource reference

### addResourceEnvRef

    public void addResourceEnvRef(java.lang.String name,
                                  java.lang.String type)

  Add a resource environment reference for this web application.

  Parameters:
    `name` - The resource environment reference name
    `type` - The resource environment reference type

### addResourceLink

    public void addResourceLink(ContextResourceLink resourceLink)

  Add a resource link for this web application.

  Parameters:
    `resourceLink` - New resource link

### addWrapperLifecycle

    public void addWrapperLifecycle(java.lang.String listener)

  Add the classname of a LifecycleListener to be added to each Wrapper appended to this Context.

  Parameters:
    `listener` - Java class name of a LifecycleListener class

### addWrapperListener

    public void addWrapperListener(java.lang.String listener)

  Add the classname of a ContainerListener to be added to each Wrapper appended to this Context.

  Parameters:
    `listener` - Java class name of a ContainerListener class

### findApplicationListeners

    public java.lang.String[] findApplicationListeners()

  Return the set of application listener class names configured for this application.

### findApplicationParameters

    public ApplicationParameter[] findApplicationParameters()

  Return the set of application parameters for this application.

### findEjb

    public ContextEjb findEjb(java.lang.String name)

  Return the EJB resource reference with the specified name, if any; otherwise, return `null`.

  Parameters:
    `name` - Name of the desired EJB resource reference

### findEjbs

    public ContextEjb[] findEjbs()

  Return the defined EJB resource references for this application. If there are none, a zero-length array is returned.

### findEnvironment

    public ContextEnvironment findEnvironment(java.lang.String name)

  Return the environment entry with the specified name, if any; otherwise, return `null`.

  Parameters:
    `name` - Name of the desired environment entry

### findEnvironments

    public ContextEnvironment[] findEnvironments()

  Return the set of defined environment entries for this web application. If none have been defined, a zero-length array is returned.

### findResourceParams

    public ResourceParams[] findResourceParams()

  Return the set of defined resource parameters for this web application. If none have been defined, a zero-length array is returned.

### findInstanceListeners

    public java.lang.String[] findInstanceListeners()

  Return the set of InstanceListener classes that will be added to newly created Wrappers automatically.

### findParameter

    public java.lang.String findParameter(java.lang.String name)

  Return the value for the specified context initialization parameter name, if any; otherwise return `null`.

  Parameters:
    `name` - Name of the parameter to return

### findParameters

    public java.lang.String[] findParameters()

  Return the names of all defined context initialization parameters for this Context. If no parameters are defined, a zero-length array is returned.

### findResource

    public ContextResource findResource(java.lang.String name)

  Return the resource reference with the specified name, if any; otherwise return `null`.

  Parameters:
    `name` - Name of the desired resource reference

### findResourceEnvRef

    public java.lang.String findResourceEnvRef(java.lang.String name)

  Return the resource environment reference type for the specified name, if any; otherwise return `null`.

  Parameters:
    `name` - Name of the desired resource environment reference

### findResourceEnvRefs

    public java.lang.String[] findResourceEnvRefs()

  Return the set of resource environment reference names for this web application. If none have been specified, a zero-length array is returned.

### findResourceLink

    public ContextResourceLink findResourceLink(java.lang.String name)

  Return the resource link with the specified name, if any; otherwise return `null`.

  Parameters:
    `name` - Name of the desired resource link

### findResourceLinks

    public ContextResourceLink[] findResourceLinks()

  Return the defined resource links for this application. If none have been defined, a zero-length array is returned.

### findResources

    public ContextResource[] findResources()

  Return the defined resource references for this application. If none have been defined, a zero-length array is returned.

### findWrapperLifecycles

    public java.lang.String[] findWrapperLifecycles()

  Return the set of LifecycleListener classes that will be added to newly created Wrappers automatically.

### findWrapperListeners

    public java.lang.String[] findWrapperListeners()

  Return the set of ContainerListener classes that will be added to newly created Wrappers automatically.

### removeApplicationListener

    public void removeApplicationListener(java.lang.String listener)

  Remove the specified application listener class from the set of listeners for this application.

  Parameters:
    `listener` - Java class name of the listener to be removed

### removeApplicationParameter

    public void removeApplicationParameter(java.lang.String name)

  Remove the application parameter with the specified name from the set for this application.

  Parameters:
    `name` - Name of the application parameter to remove

### removeEjb

    public void removeEjb(java.lang.String name)

  Remove any EJB resource reference with the specified name.

  Parameters:
    `name` - Name of the EJB resource reference to remove

### removeEnvironment

    public void removeEnvironment(java.lang.String name)

  Remove any environment entry with the specified name.

  Parameters:
    `name` - Name of the environment entry to remove

### removeInstanceListener

    public void removeInstanceListener(java.lang.String listener)

  Remove a class name from the set of InstanceListener classes that will be added to newly created Wrappers.

  Parameters:
    `listener` - Class name of an InstanceListener class to be removed

### removeParameter

    public void removeParameter(java.lang.String name)

  Remove the context initialization parameter with the specified name, if it exists; otherwise, no action is taken.

  Parameters:
    `name` - Name of the parameter to remove

### removePropertyChangeListener

    public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

  Remove a property change listener from this component.

  Parameters:
    `listener` - The listener to remove

### removeResource

    public void removeResource(java.lang.String name)

  Remove any resource reference with the specified name.

  Parameters:
    `name` - Name of the resource reference to remove

### removeResourceEnvRef

    public void removeResourceEnvRef(java.lang.String name)

  Remove any resource environment reference with the specified name.

  Parameters:
    `name` - Name of the resource environment reference to remove

### removeResourceLink

    public void removeResourceLink(java.lang.String name)

  Remove any resource link with the specified name.

  Parameters:
    `name` - Name of the resource link to remove

### removeWrapperLifecycle

    public void removeWrapperLifecycle(java.lang.String listener)

  Remove a class name from the set of LifecycleListener classes that will be added to newly created Wrappers.

  Parameters:
    `listener` - Class name of a LifecycleListener class to be removed

### removeWrapperListener

    public void removeWrapperListener(java.lang.String listener)

  Remove a class name from the set of ContainerListener classes that will be added to newly created Wrappers.

  Parameters:
    `listener` - Class name of a ContainerListener class to be removed

### importDefaultContext

    public void importDefaultContext(Context context)

  Import the configuration from the DefaultContext into current Context.

  Parameters:
    `context` - current web application context

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