VirtualDirContext (Apache Tomcat 6.0.53 API Documentation)
Keywords: org.apache.naming.resources.VirtualDirContext class

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## org.apache.naming.resources
Class VirtualDirContext

    java.lang.Object
      org.apache.naming.resources.BaseDirContext
          org.apache.naming.resources.FileDirContext
              org.apache.naming.resources.VirtualDirContext

All Implemented Interfaces:
  javax.naming.Context, javax.naming.directory.DirContext

    public class VirtualDirContext

extends FileDirContext

Extended FileDirContext implementation that will allow loading of tld files from the META-INF directory (or subdirectories) in classpath. This will fully mimic the behavior of compressed jars also when using unjarred resources. Tld files can be loaded indifferently from WEB-INF webapp dir (or subdirs) or from META-INF dir from jars available in the classpath: using this DirContext implementation you will be able to use unexpanded jars during development and to make any tld in them virtually available to the webapp. Sample context xml configuration: `<Context docBase="\webapps\mydocbase"> <Resources className="org.apache.naming.resources.VirtualDirContext" virtualClasspath="\dir\classes;\somedir\somejar.jar"/> </Resources>` This is not meant to be used for production. Its meant to ease development with IDE's without the need for fully republishing jars in WEB-INF/lib

Author:
  Fabrizio Giustina

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.naming.resources.FileDirContext
`FileDirContext.FileResource, FileDirContext.FileResourceAttributes`

Field Summary

Fields inherited from class org.apache.naming.resources.FileDirContext
`absoluteBase, allowLinking, base, BUFFER_SIZE, caseSensitive`

Fields inherited from class org.apache.naming.resources.BaseDirContext
`cached, cacheMaxSize, cacheObjectMaxSize, cacheTTL, docBase, env, nameParser, sm`

Fields inherited from interface javax.naming.directory.DirContext
`ADD_ATTRIBUTE, REMOVE_ATTRIBUTE, REPLACE_ATTRIBUTE`

Fields inherited from interface javax.naming.Context
`APPLET, AUTHORITATIVE, BATCHSIZE, DNS_URL, INITIAL_CONTEXT_FACTORY, LANGUAGE, OBJECT_FACTORIES, PROVIDER_URL, REFERRAL, SECURITY_AUTHENTICATION, SECURITY_CREDENTIALS, SECURITY_PRINCIPAL, SECURITY_PROTOCOL, STATE_FACTORIES, URL_PKG_PREFIXES`

Constructor Summary
`VirtualDirContext()`

Method Summary
`void` | `allocate()` Allocate resources for this directory context.
`javax.naming.directory.Attributes` | `getAttributes(java.lang.String name)` Retrieves all of the attributes associated with a named object.
`protected java.util.ArrayList` | `list(java.io.File file)` List the resources which are members of a collection.
`java.lang.Object` | `lookup(java.lang.String name)` Retrieves the named object.
`void` | `release()` Release any resources allocated for this directory context.
`void` | `setVirtualClasspath(java.lang.String path)` `virtualClasspath` attribute that will be automatically set from the `Context` `virtualClasspath` attribute from the context xml file.

Methods inherited from class org.apache.naming.resources.FileDirContext
`bind, createSubcontext, destroySubcontext, file, getAllowLinking, getAttributes, getNameInNamespace, getSchema, getSchemaClassDefinition, isCaseSensitive, list, listBindings, lookupLink, modifyAttributes, modifyAttributes, normalize, rebind, rename, search, search, search, search, setAllowLinking, setCaseSensitive, setDocBase, unbind`

Methods inherited from class org.apache.naming.resources.BaseDirContext
`addToEnvironment, bind, bind, bind, close, composeName, composeName, createSubcontext, createSubcontext, createSubcontext, destroySubcontext, getAttributes, getAttributes, getCacheMaxSize, getCacheObjectMaxSize, getCacheTTL, getDocBase, getEnvironment, getNameParser, getNameParser, getSchema, getSchemaClassDefinition, isCached, list, listBindings, lookup, lookupLink, modifyAttributes, modifyAttributes, rebind, rebind, rebind, removeFromEnvironment, rename, search, search, search, search, setCached, setCacheMaxSize, setCacheObjectMaxSize, setCacheTTL, unbind`

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

Constructor Detail

### VirtualDirContext

    public VirtualDirContext()

Method Detail

### setVirtualClasspath

    public void setVirtualClasspath(java.lang.String path)

  `virtualClasspath` attribute that will be automatically set from the `Context` `virtualClasspath` attribute from the context xml file.

  Parameters:
    `path` - `;` separated list of path elements.

### allocate

    public void allocate()

  Allocate resources for this directory context.

  Overrides:
    `allocate` in class `BaseDirContext`

### release

    public void release()

  Release any resources allocated for this directory context.

  Overrides:
    `release` in class `FileDirContext`

### getAttributes

    public javax.naming.directory.Attributes getAttributes(java.lang.String name)
                                                    throws javax.naming.NamingException

  Description copied from class: `BaseDirContext`
  Retrieves all of the attributes associated with a named object.

  Specified by:
    `getAttributes` in interface `javax.naming.directory.DirContext`
  Overrides:
    `getAttributes` in class `BaseDirContext`
  Parameters:
    `name` - the name of the object from which to retrieve attributes
  Returns:
    the set of attributes associated with name
  Throws:
    `javax.naming.NamingException` - if a naming exception is encountered

### list

    protected java.util.ArrayList list(java.io.File file)

  Description copied from class: `FileDirContext`
  List the resources which are members of a collection.

  Overrides:
    `list` in class `FileDirContext`
  Parameters:
    `file` - Collection
  Returns:
    Vector containg NamingEntry objects

### lookup

    public java.lang.Object lookup(java.lang.String name)
                            throws javax.naming.NamingException

  Description copied from class: `FileDirContext`
  Retrieves the named object.

  Specified by:
    `lookup` in interface `javax.naming.Context`
  Overrides:
    `lookup` in class `FileDirContext`
  Parameters:
    `name` - the name of the object to look up
  Returns:
    the object bound to name
  Throws:
    `javax.naming.NamingException` - if a naming exception is encountered

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