com.windgazer.util.io.taglib
Class FileAttributeTag

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--com.windgazer.util.io.taglib.FileAttributeTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

Direct Known Subclasses:

FileContentTag, FileLengthTag, FileNameTag, FileRelativePathTag

public abstract class FileAttributeTag

extends javax.servlet.jsp.tagext.TagSupport

FileAttributeTag is the base for creating short-coded attibute-tags.
Attribute tags in this context are tags that print a short string representing one of the providers attributes.
This Tag will try and find the surrounding FileProvider and pass it on to the getTagPrintString(File) method so that the short-coded implementation of this tag needs only to read and return the desired attribute.

Version:

1.1

Author:

Martin 'Kemanorel' Reurings

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

FileAttributeTag()

Method Summary

int	doStartTag() Gets the File from the surrounding FileProvider and prints the result of getTagPrintString(File) to the pageContext.
abstract java.lang.String	getTagPrintString(java.io.File myFile) Return the value of an attribute.

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, release, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileAttributeTag

public FileAttributeTag()

Method Detail

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspTagException

Gets the File from the surrounding FileProvider and prints the result of getTagPrintString(File) to the pageContext.

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class javax.servlet.jsp.tagext.TagSupport

Returns:

SKIP_BODY

javax.servlet.jsp.JspTagException

See Also:

getTagPrintString(File)

getTagPrintString

public abstract java.lang.String getTagPrintString(java.io.File myFile)
                                            throws java.io.IOException

Return the value of an attribute.
This method is called by doStartTag and must be implemented to return a value for an attribute of File.

Parameters:

myFile - The File returned by the surrounding FileProvider.

Returns:

A String containing the value of an attribute.

java.io.IOException

See Also:

doStartTag()