javax.servlet.jsp.tagext
Class TagInfo

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagInfo

public class TagInfo

extends Object

Tag information for a tag in a Tag Library; this class is instantiated from the Tag Library Descriptor file (TLD).

Field Summary

static String	BODY_CONTENT_EMPTY static constant for getBodyContent() when it is empty
static String	BODY_CONTENT_JSP static constant for getBodyContent() when it is JSP
static String	BODY_CONTENT_TAG_DEPENDENT static constant for getBodyContent() when it is Tag dependent

Constructor Summary

TagInfo(String tagName, String tagClassName, String bodycontent, String infoString, TagLibraryInfo taglib, TagExtraInfo tagExtraInfo, TagAttributeInfo[] attributeInfo)
Constructor for TagInfo.

Method Summary

TagAttributeInfo[]	getAttributes() A null return means no information on attributes
String	getBodyContent()
String	getInfoString()
String	getTagClassName() Name of the class that provides the (run-time handler for this tag
TagExtraInfo	getTagExtraInfo() The instance (if any) for extra tag information
TagLibraryInfo	getTagLibrary()
String	getTagName() Tag name
VariableInfo[]	getVariableInfo(TagData data) Information on the object created by this tag at runtime.
boolean	isValid(TagData data) Translation-time validation of the attributes.
String	toString() Stringify for debug purposes...

Methods inherited from class java.lang.Object

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

Field Detail

BODY_CONTENT_JSP

public static final String BODY_CONTENT_JSP

static constant for getBodyContent() when it is JSP

BODY_CONTENT_TAG_DEPENDENT

public static final String BODY_CONTENT_TAG_DEPENDENT

static constant for getBodyContent() when it is Tag dependent

BODY_CONTENT_EMPTY

public static final String BODY_CONTENT_EMPTY

static constant for getBodyContent() when it is empty

Constructor Detail

TagInfo

public TagInfo(String tagName,
               String tagClassName,
               String bodycontent,
               String infoString,
               TagLibraryInfo taglib,
               TagExtraInfo tagExtraInfo,
               TagAttributeInfo[] attributeInfo)

Constructor for TagInfo. No public constructor; this class is to be instantiated only from the TagLibrary code under request from some JSP code that is parsing a TLD (Tag Library Descriptor).

Parameters:

tagName - The name of this tag

tagClassName - The name of the tag handler class

bodycontent - Information on the body content of these tags

infoString - The (optional) string information for this tag

taglib - The instance of the tag library that contains us.

tagExtraInfo - The instance providing extra Tag info. May be null

attributeInfo - An array of AttributeInfo data from descriptor. May be null;

Method Detail

getTagName

public String getTagName()

Tag name

getAttributes

public TagAttributeInfo[] getAttributes()

A null return means no information on attributes

getVariableInfo

public VariableInfo[] getVariableInfo(TagData data)

Information on the object created by this tag at runtime. Null means no such object created. Default is null if the tag has no "id" attribute, otherwise, {"id", Object}

isValid

public boolean isValid(TagData data)

Translation-time validation of the attributes. The argument is a translation-time, so request-time attributes are indicated as such.

Parameters:

data - The translation-time TagData instance.

getTagExtraInfo

public TagExtraInfo getTagExtraInfo()

The instance (if any) for extra tag information

getTagClassName

public String getTagClassName()

Name of the class that provides the (run-time handler for this tag

getBodyContent

public String getBodyContent()

Returns:

the body content (hint) string

getInfoString

public String getInfoString()

Returns:

the info string

getTagLibrary

public TagLibraryInfo getTagLibrary()

Returns:

the tab library instance we belong to

toString

public String toString()

Stringify for debug purposes...

Overrides:

toString in class Object