org.apache.poi.poifs.filesystem
Class POIFSDocumentPath

java.lang.Object
  extended by org.apache.poi.poifs.filesystem.POIFSDocumentPath

public class POIFSDocumentPath
extends java.lang.Object

Class POIFSDocumentPath

Version:
%I%, %G%
Author:
Marc Johnson (mjohnson at apache dot org)

Constructor Summary
POIFSDocumentPath()
          simple constructor for the path of a document that is in the root of the POIFSFileSystem.
POIFSDocumentPath(POIFSDocumentPath path, java.lang.String[] components)
          constructor that adds additional subdirectories to an existing path
POIFSDocumentPath(java.lang.String[] components)
          constructor for the path of a document that is not in the root of the POIFSFileSystem
 
Method Summary
 boolean equals(java.lang.Object o)
          equality.
 java.lang.String getComponent(int n)
          get the specified component
 POIFSDocumentPath getParent()
          Returns the path's parent or null if this path is the root path.
 int hashCode()
          calculate and return the hashcode
 int length()
           
 java.lang.String toString()
          Returns a string representation of the path.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

POIFSDocumentPath

public POIFSDocumentPath(java.lang.String[] components)
                  throws java.lang.IllegalArgumentException
constructor for the path of a document that is not in the root of the POIFSFileSystem

Parameters:
components - the Strings making up the path to a document. The Strings must be ordered as they appear in the directory hierarchy of the the document -- the first string must be the name of a directory in the root of the POIFSFileSystem, and every Nth (for N > 1) string thereafter must be the name of a directory in the directory identified by the (N-1)th string.

If the components parameter is null or has zero length, the POIFSDocumentPath is appropriate for a document that is in the root of a POIFSFileSystem

Throws:
java.lang.IllegalArgumentException - if any of the elements in the components parameter are null or have zero length

POIFSDocumentPath

public POIFSDocumentPath()
simple constructor for the path of a document that is in the root of the POIFSFileSystem. The constructor that takes an array of Strings can also be used to create such a POIFSDocumentPath by passing it a null or empty String array


POIFSDocumentPath

public POIFSDocumentPath(POIFSDocumentPath path,
                         java.lang.String[] components)
                  throws java.lang.IllegalArgumentException
constructor that adds additional subdirectories to an existing path

Parameters:
path - the existing path
components - the additional subdirectory names to be added
Throws:
java.lang.IllegalArgumentException - if any of the Strings in components is null or zero length
Method Detail

equals

public boolean equals(java.lang.Object o)
equality. Two POIFSDocumentPath instances are equal if they have the same number of component Strings, and if each component String is equal to its coresponding component String

Overrides:
equals in class java.lang.Object
Parameters:
o - the object we're checking equality for
Returns:
true if the object is equal to this object

hashCode

public int hashCode()
calculate and return the hashcode

Overrides:
hashCode in class java.lang.Object
Returns:
hashcode

length

public int length()
Returns:
the number of components

getComponent

public java.lang.String getComponent(int n)
                              throws java.lang.ArrayIndexOutOfBoundsException
get the specified component

Parameters:
n - which component (0 ... length() - 1)
Returns:
the nth component;
Throws:
java.lang.ArrayIndexOutOfBoundsException - if n < 0 or n >= length()

getParent

public POIFSDocumentPath getParent()

Returns the path's parent or null if this path is the root path.

Returns:
path of parent, or null if this path is the root path
Since:
2002-01-24

toString

public java.lang.String toString()

Returns a string representation of the path. Components are separated by the platform-specific file separator.

Overrides:
toString in class java.lang.Object
Returns:
string representation
Since:
2002-01-24


Copyright 2008 The Apache Software Foundation or its licensors, as applicable.