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com.memoire.bu
Class BuFileFilter  

java.lang.Object
  javax.swing.filechooser.FileFilter
      com.memoire.bu.BuFileFilter

All Implemented Interfaces:

java.io.FilenameFilter, java.io.Serializable

Direct Known Subclasses:

BuFileFilterAll, BuFileFilterDirectory

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public class BuFileFilter

extends javax.swing.filechooser.FileFilter

implements java.io.FilenameFilter, java.io.Serializable

A simple implementation of FileFilter.

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Field Summary
protected  java.lang.String	description_
private  java.util.Hashtable	filters_
protected  java.lang.String	fullDescription_
private  boolean	useExtensionsInDescription_

 

Constructor Summary

BuFileFilter(java.lang.String extension)

BuFileFilter(java.lang.String[] _filters)

BuFileFilter(java.lang.String[] _filters, java.lang.String _description)

BuFileFilter(java.lang.String _extension, java.lang.String _description)

 

Method Summary
boolean	accept(java.io.File _f)           Returns true if the specified file matches the filter, and false otherwise.
boolean	accept(java.io.File _d, java.lang.String _fn)           This method determines whether or not a given file should be included in a directory listing.
boolean	accept(java.lang.String _f)
void	addExtension(java.lang.String _extension)
boolean	equals(java.lang.Object _o)           Determine whether this Object is semantically equal to another Object.
java.lang.String	getDescription()           Returns a description of the files that will be selected by the filter (for example, "Java source files").
java.lang.String	getExtension(java.io.File _f)
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
boolean	isExtensionListInDescription()
void	setDescription(java.lang.String _description)
void	setExtensionListInDescription(boolean _b)
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

filters_

private java.util.Hashtable filters_

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useExtensionsInDescription_

private boolean useExtensionsInDescription_

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description_

protected java.lang.String description_

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fullDescription_

protected java.lang.String fullDescription_

Constructor Detail

BuFileFilter

public BuFileFilter(java.lang.String extension)

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BuFileFilter

public BuFileFilter(java.lang.String _extension,
                    java.lang.String _description)

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BuFileFilter

public BuFileFilter(java.lang.String[] _filters)

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BuFileFilter

public BuFileFilter(java.lang.String[] _filters,
                    java.lang.String _description)

Method Detail

accept

public boolean accept(java.lang.String _f)

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accept

public boolean accept(java.io.File _f)

Description copied from class: javax.swing.filechooser.FileFilter

Returns true if the specified file matches the filter, and false otherwise.

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accept

public boolean accept(java.io.File _d,
                      java.lang.String _fn)

Description copied from interface: java.io.FilenameFilter

This method determines whether or not a given file should be included in a directory listing.

Specified by:

accept in interface java.io.FilenameFilter

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getExtension

public java.lang.String getExtension(java.io.File _f)

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addExtension

public void addExtension(java.lang.String _extension)

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getDescription

public java.lang.String getDescription()

Description copied from class: javax.swing.filechooser.FileFilter

Returns a description of the files that will be selected by the filter (for example, "Java source files"). This description will usually be displayed on the javax.swing.JFileChooser component, often in a combo box that is used to select the appropriate filter (in cases where more than one filter is available).

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setDescription

public void setDescription(java.lang.String _description)

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setExtensionListInDescription

public void setExtensionListInDescription(boolean _b)

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isExtensionListInDescription

public boolean isExtensionListInDescription()

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hashCode

public int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

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equals

public boolean equals(java.lang.Object _o)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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