com.sas.util.transforms
Class FileVerifierTransform

com.sas.util.transforms.FileVerifierTransform

All Implemented Interfaces:

com.sas.util.transforms.TransformInterface, java.io.Serializable

public class FileVerifierTransform
implements com.sas.util.transforms.TransformInterface

This is a transform designed to be used on a link between a component generating filenames (ie. com.sas.io.FileList) and a component which uses filenames to access data (ie. com.sas.visuals.ImageView). The transform checks to see if the filename passed in is for a file. If it is, it returns the filename. Otherwise, it returns null.

An example of using this is to link the selectedItem property of a TreeView containing a FileList to the source property of an ImageView. To setup such a link you would add code like the following:

See Also:

Serialized Form

Field Summary

protected java.lang.Object

defaultValue

Constructor Summary

FileVerifierTransform()

FileVerifierTransform(java.lang.Object defaultValue)

Method Summary

java.lang.Object

transform(java.lang.Object value)

Field Detail

defaultValue

protected java.lang.Object defaultValue

Constructor Detail

FileVerifierTransform

public FileVerifierTransform()

FileVerifierTransform

public FileVerifierTransform(java.lang.Object defaultValue)

Method Detail

transform

public java.lang.Object transform(java.lang.Object value)

Specified by:

transform in interface com.sas.util.transforms.TransformInterface