Package javax.servlet.jsp.tagext

Class TagInfo

java.lang.Object

javax.servlet.jsp.tagext.TagInfo

public class TagInfo
extends java.lang.Object

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

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	BODY_CONTENT_EMPTY	static constant for getBodyContent() when it is empty
static java.lang.String	BODY_CONTENT_JSP	static constant for getBodyContent() when it is JSP
static java.lang.String	BODY_CONTENT_TAG_DEPENDENT	static constant for getBodyContent() when it is Tag dependent

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
TagAttributeInfo[]	getAttributes()	A null return means no information on attributes
java.lang.String	getBodyContent()
java.lang.String	getInfoString()
java.lang.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()
java.lang.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.
java.lang.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 java.lang.String BODY_CONTENT_JSP

static constant for getBodyContent() when it is JSP

See Also:

Constant Field Values

BODY_CONTENT_TAG_DEPENDENT

public static final java.lang.String BODY_CONTENT_TAG_DEPENDENT

static constant for getBodyContent() when it is Tag dependent

See Also:

Constant Field Values

BODY_CONTENT_EMPTY

public static final java.lang.String BODY_CONTENT_EMPTY

static constant for getBodyContent() when it is empty

See Also:

Constant Field Values

Constructor Detail

TagInfo

public TagInfo(java.lang.String tagName,
               java.lang.String tagClassName,
               java.lang.String bodycontent,
               java.lang.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 java.lang.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 java.lang.String getTagClassName()

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

getBodyContent

public java.lang.String getBodyContent()

Returns:

the body content (hint) string

getInfoString

public java.lang.String getInfoString()

Returns:

the info string

getTagLibrary

public TagLibraryInfo getTagLibrary()

Returns:

the tab library instance we belong to

toString

public java.lang.String toString()

Stringify for debug purposes...

Overrides:

toString in class java.lang.Object