File	Doc	Category	Size	Date	Package
TagInfo.java	API Doc	Apache Tomcat 6.0.14	14173	Fri Jul 20 04:20:36 BST 2007	javax.servlet.jsp.tagext

TagInfo

• java.lang.Object

Fields Summary
public static final String	BODY_CONTENT_JSP Static constant for getBodyContent() when it is JSP.
public static final String	BODY_CONTENT_TAG_DEPENDENT Static constant for getBodyContent() when it is Tag dependent.
public static final String	BODY_CONTENT_EMPTY Static constant for getBodyContent() when it is empty.
public static final String	BODY_CONTENT_SCRIPTLESS Static constant for getBodyContent() when it is scriptless.
private String	tagName
private String	tagClassName
private String	bodyContent
private String	infoString
private TagLibraryInfo	tagLibrary
private TagExtraInfo	tagExtraInfo
private TagAttributeInfo[]	attributeInfo
private String	displayName
private String	smallIcon
private String	largeIcon
private TagVariableInfo[]	tagVariableInfo
private boolean	dynamicAttributes

Constructors Summary
public TagInfo(String tagName, String tagClassName, String bodycontent, String infoString, TagLibraryInfo taglib, TagExtraInfo tagExtraInfo, TagAttributeInfo[] attributeInfo) Constructor for TagInfo from data in the JSP 1.1 format for TLD. 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). Note that, since TagLibibraryInfo reflects both TLD information and taglib directive information, a TagInfo instance is dependent on a taglib directive. This is probably a design error, which may be fixed in the future. param tagName The name of this tag param tagClassName The name of the tag handler class param bodycontent Information on the body content of these tags param infoString The (optional) string information for this tag param taglib The instance of the tag library that contains us. param tagExtraInfo The instance providing extra Tag info. May be null param attributeInfo An array of AttributeInfo data from descriptor. May be null; this.tagName = tagName; this.tagClassName = tagClassName; this.bodyContent = bodycontent; this.infoString = infoString; this.tagLibrary = taglib; this.tagExtraInfo = tagExtraInfo; this.attributeInfo = attributeInfo; if (tagExtraInfo != null) tagExtraInfo.setTagInfo(this);
public TagInfo(String tagName, String tagClassName, String bodycontent, String infoString, TagLibraryInfo taglib, TagExtraInfo tagExtraInfo, TagAttributeInfo[] attributeInfo, String displayName, String smallIcon, String largeIcon, TagVariableInfo[] tvi) Constructor for TagInfo from data in the JSP 1.2 format for TLD. 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). Note that, since TagLibibraryInfo reflects both TLD information and taglib directive information, a TagInfo instance is dependent on a taglib directive. This is probably a design error, which may be fixed in the future. param tagName The name of this tag param tagClassName The name of the tag handler class param bodycontent Information on the body content of these tags param infoString The (optional) string information for this tag param taglib The instance of the tag library that contains us. param tagExtraInfo The instance providing extra Tag info. May be null param attributeInfo An array of AttributeInfo data from descriptor. May be null; param displayName A short name to be displayed by tools param smallIcon Path to a small icon to be displayed by tools param largeIcon Path to a large icon to be displayed by tools param tvi An array of a TagVariableInfo (or null) this.tagName = tagName; this.tagClassName = tagClassName; this.bodyContent = bodycontent; this.infoString = infoString; this.tagLibrary = taglib; this.tagExtraInfo = tagExtraInfo; this.attributeInfo = attributeInfo; this.displayName = displayName; this.smallIcon = smallIcon; this.largeIcon = largeIcon; this.tagVariableInfo = tvi; if (tagExtraInfo != null) tagExtraInfo.setTagInfo(this);
public TagInfo(String tagName, String tagClassName, String bodycontent, String infoString, TagLibraryInfo taglib, TagExtraInfo tagExtraInfo, TagAttributeInfo[] attributeInfo, String displayName, String smallIcon, String largeIcon, TagVariableInfo[] tvi, boolean dynamicAttributes) Constructor for TagInfo from data in the JSP 2.0 format for TLD. 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). Note that, since TagLibibraryInfo reflects both TLD information and taglib directive information, a TagInfo instance is dependent on a taglib directive. This is probably a design error, which may be fixed in the future. param tagName The name of this tag param tagClassName The name of the tag handler class param bodycontent Information on the body content of these tags param infoString The (optional) string information for this tag param taglib The instance of the tag library that contains us. param tagExtraInfo The instance providing extra Tag info. May be null param attributeInfo An array of AttributeInfo data from descriptor. May be null; param displayName A short name to be displayed by tools param smallIcon Path to a small icon to be displayed by tools param largeIcon Path to a large icon to be displayed by tools param tvi An array of a TagVariableInfo (or null) param dynamicAttributes True if supports dynamic attributes since 2.0 this.tagName = tagName; this.tagClassName = tagClassName; this.bodyContent = bodycontent; this.infoString = infoString; this.tagLibrary = taglib; this.tagExtraInfo = tagExtraInfo; this.attributeInfo = attributeInfo; this.displayName = displayName; this.smallIcon = smallIcon; this.largeIcon = largeIcon; this.tagVariableInfo = tvi; this.dynamicAttributes = dynamicAttributes; if (tagExtraInfo != null) tagExtraInfo.setTagInfo(this);

Methods Summary
public TagAttributeInfo[]	getAttributes() Attribute information (in the TLD) on this tag. The return is an array describing the attributes of this tag, as indicated in the TLD. return The array of TagAttributeInfo for this tag, or a zero-length array if the tag has no attributes. return attributeInfo;
public java.lang.String	getBodyContent() The bodycontent information for this tag. If the bodycontent is not defined for this tag, the default of JSP will be returned. return the body content string. return bodyContent;
public java.lang.String	getDisplayName() Get the displayName. return A short name to be displayed by tools, or null if not defined return displayName;
public java.lang.String	getInfoString() The information string for the tag. return the info string, or null if not defined return infoString;
public java.lang.String	getLargeIcon() Get the path to the large icon. return Path to a large icon to be displayed by tools, or null if not defined return largeIcon;
public java.lang.String	getSmallIcon() Get the path to the small icon. return Path to a small icon to be displayed by tools, or null if not defined return smallIcon;
public java.lang.String	getTagClassName() Name of the class that provides the handler for this tag. return The name of the tag handler class. return tagClassName;
public TagExtraInfo	getTagExtraInfo() The instance (if any) for extra tag information. return The TagExtraInfo instance, if any. return tagExtraInfo;
public TagLibraryInfo	getTagLibrary() The instance of TabLibraryInfo we belong to. return the tag library instance we belong to return tagLibrary;
public java.lang.String	getTagName() The name of the Tag. return The (short) name of the tag. return tagName;
public TagVariableInfo[]	getTagVariableInfos() Get TagVariableInfo objects associated with this TagInfo. return Array of TagVariableInfo objects corresponding to variables declared by this tag, or a zero length array if no variables have been declared return tagVariableInfo;
public VariableInfo[]	getVariableInfo(TagData data) Information on the scripting objects created by this tag at runtime. This is a convenience method on the associated TagExtraInfo class. param data TagData describing this action. return if a TagExtraInfo object is associated with this TagInfo, the result of getTagExtraInfo().getVariableInfo( data ), otherwise null. VariableInfo[] result = null; TagExtraInfo tei = getTagExtraInfo(); if (tei != null) { result = tei.getVariableInfo( data ); } return result;
public boolean	hasDynamicAttributes() Get dynamicAttributes associated with this TagInfo. return True if tag handler supports dynamic attributes since 2.0 return dynamicAttributes;
public boolean	isValid(TagData data) Translation-time validation of the attributes. This is a convenience method on the associated TagExtraInfo class. param data The translation-time TagData instance. return Whether the data is valid. TagExtraInfo tei = getTagExtraInfo(); if (tei == null) { return true; } return tei.isValid(data);
public void	setTagExtraInfo(TagExtraInfo tei) Set the instance for extra tag information. param tei the TagExtraInfo instance tagExtraInfo = tei;
public void	setTagLibrary(TagLibraryInfo tl) Set the TagLibraryInfo property. Note that a TagLibraryInfo element is dependent not just on the TLD information but also on the specific taglib instance used. This means that a fair amount of work needs to be done to construct and initialize TagLib objects. If used carefully, this setter can be used to avoid having to create new TagInfo elements for each taglib directive. param tl the TagLibraryInfo to assign tagLibrary = tl;
public ValidationMessage[]	validate(TagData data) Translation-time validation of the attributes. This is a convenience method on the associated TagExtraInfo class. param data The translation-time TagData instance. return A null object, or zero length array if no errors, an array of ValidationMessages otherwise. since 2.0 TagExtraInfo tei = getTagExtraInfo(); if( tei == null ) { return null; } return tei.validate( data );