# All Classes and Interfaces

Class
Description
BodyContent
An encapsulation of the evaluation of the body of an action so it is available to a tag handler.
BodyTag
The BodyTag interface extends IterationTag by defining additional methods that let a tag handler manipulate the content of evaluating its body.
BodyTagSupport
A base class for defining tag handlers implementing BodyTag.
DynamicAttributes
For a tag to declare that it accepts dynamic attributes, it must implement this interface.
ErrorData
Contains information about an error, for error pages.
FunctionInfo
Information for a function in a Tag Library.
HttpJspPage
The HttpJspPage interface describes the interaction that a JSP Page Implementation Class must satisfy when using the HTTP protocol.
ImplicitObjectELResolver
Provides resolution in EL for the implicit variables of a JSP page.
ImportELResolver
Providers resolution of imports and static imports in the Jakarta Pages ELResolver chain.
IterationTag
The IterationTag interface extends Tag by defining one additional method that controls the reevaluation of its body.
JspApplicationContext
Stores application-scoped information for the JSP container.
JspContext
`JspContext` serves as the base class for the PageContext class and abstracts all information that is not specific to servlets.
JspEngineInfo
The JspEngineInfo is an abstract class that provides information on the current JSP engine.
JspException
A generic exception known to the JSP engine; uncaught JspExceptions will result in an invocation of the errorpage machinery.
JspFactory
The JspFactory is an abstract class that defines a number of factory methods available to a JSP page at runtime for the purposes of creating instances of various interfaces and classes used to support the JSP implementation.
JspFragment
Encapsulates a portion of JSP code in an object that can be invoked as many times as needed.
JspIdConsumer
Interface that allows tag handlers to be provided with a unique (within the scope of the web application) ID.
JspPage
The JspPage interface describes the generic interaction that a JSP Page Implementation class must satisfy; pages that use the HTTP protocol are described by the HttpJspPage interface.
JspTag
Serves as a base class for Tag and SimpleTag.
JspTagException
Exception to be used by a Tag Handler to indicate some unrecoverable error.
JspWriter
The actions and template data in a JSP page is written using the JspWriter object that is referenced by the implicit variable out which is initialized automatically using methods in the PageContext object.
NotFoundELResolver
The final resolver of the Jakarta Pages ELResolver chain.
PageContext
PageContext extends JspContext to provide useful context information for when JSP technology is used in a Servlet environment.
PageData
Translation-time information on a JSP page.
ScopedAttributeELResolver
An ELResolver for working with JSP scoped attributes which may have page, request, session or application scope.
SimpleTag
Interface for defining Simple Tag Handlers.
SimpleTagSupport
A base class for defining tag handlers implementing SimpleTag.
SkipPageException
Exception to indicate the calling page must cease evaluation.
Tag
The interface of a classic tag handler that does not want to manipulate its body.
TagAdapter
Wraps any SimpleTag and exposes it using a Tag interface.
TagAttributeInfo
Information on the attributes of a Tag, available at translation time.
TagData
The (translation-time only) attribute/value information for a tag instance.
TagExtraInfo
Optional class provided by the tag library author to describe additional translation-time information not described in the TLD.
TagFileInfo
Tag information for a tag file in a Tag Library; This class is instantiated from the Tag Library Descriptor file (TLD) and is available only at translation time.
TagInfo
Tag information for a tag in a Tag Library; This class is instantiated from the Tag Library Descriptor file (TLD) and is available only at translation time.
TagLibraryInfo
Translation-time information associated with a taglib directive, and its underlying TLD file.
TagLibraryValidator
Translation-time validator class for a JSP page.
TagSupport
A base class for defining new tag handlers implementing Tag.
TagVariableInfo
Variable information for a tag in a Tag Library; This class is instantiated from the Tag Library Descriptor file (TLD) and is available only at translation time.
TryCatchFinally
The auxiliary interface of a Tag, IterationTag or BodyTag tag handler that wants additional hooks for managing resources.
ValidationMessage
A validation message from either TagLibraryValidator or TagExtraInfo.
VariableInfo
Information on the scripting variables that are created/modified by a tag (at run-time).