JavaServer Pages, 3rd Edition

Name

TagData

Synopsis

TagData instances are created by the JSP container during the translation phase to provide information about the attribute values specified for a custom action to the TagExtraInfo subclass for the corresponding tag handler, if any.

Synopsis

Class name:	javax.servlet.jsp.tagext.TagData
Extends:	None
Implements:	Clonable
Implemented by:	Internal container-dependent class; most containers use the reference implementation of the class (developed in the Apache Jakarta project)

Fields

public static final Object REQUEST_TIME_VALUE

Constructors

public TagData(Object[][] attrs)

Creates a new instance with the attribute name/value pairs specified by the Object[][]. Element 0 of each Object[] contains the name and element 1 the value or REQUEST_TIME_VALUE if the attribute value is defined as a request time value (a JSP expression).

public TagData(java.util.Hashtable attrs)

Creates a new instance with the attribute name/value pairs specified by the Hashtable.

Methods

public Object getAttribute(String attName)

Returns the specified attribute value as a String or as the REQUEST_TIME_VALUE Object if the attribute value is defined as a request-time value (a Java expression, an EL expression or set by <jsp:attribute>).

public java.util.Enumeration getAttributes( )

Returns an Enumeration of all attributes names.

public String getAttributeString(String attName)

Returns the specified attribute value as a String. A ClassCastException is thrown if the attribute value is defined ...