loci.poi.poifs.filesystem

Class POIFSDocumentPath

java.lang.Object

loci.poi.poifs.filesystem.POIFSDocumentPath

public class POIFSDocumentPath
extends Object

Class POIFSDocumentPath

Version:

%I%, %G%

Author:

Marc Johnson (mjohnson at apache dot org)

Field Summary

Fields

Modifier and Type	Field and Description
private String[]	components
private int	hashcode

Constructor Summary

Constructors

Constructor and Description
POIFSDocumentPath() simple constructor for the path of a document that is in the root of the POIFSFileSystem.
POIFSDocumentPath(POIFSDocumentPath path, String[] components) constructor that adds additional subdirectories to an existing path
POIFSDocumentPath(String[] components) constructor for the path of a document that is not in the root of the POIFSFileSystem

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o) equality.
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()
String	toString() Returns a string representation of the path.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

components

private String[] components

hashcode

private int hashcode

Constructor Detail

POIFSDocumentPath

public POIFSDocumentPath(String[] components)
                  throws 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:

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,
                 String[] components)
                  throws IllegalArgumentException

constructor that adds additional subdirectories to an existing path

Parameters:

path - the existing path

components - the additional subdirectory names to be added

Throws:

IllegalArgumentException - if any of the Strings in components is null or zero length

Method Detail

equals

public boolean equals(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 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 Object

Returns:

hashcode

length

public int length()

Returns:

the number of components

getComponent

public String getComponent(int n)
                    throws ArrayIndexOutOfBoundsException

get the specified component

Parameters:

n - which component (0 ... length() - 1)

Returns:

the nth component;

Throws:

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 String toString()

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

Overrides:

toString in class Object

Returns:

string representation

Since:

2002-01-24