There are two possible return values from the doEndTag() method: SKIP_BODY: When the doStartTag() returns this constant, the container will skip the custom tag body and encounter the end tag.EVAL_BODY_INCLUDE: When the doStartTag() returns this constant, the container will evaluate the custom tag body.There are two possible return values from doStartTag() method: release(): This method is used to perform TagHandler class de-instantiation.The custom tag body is not completely dependent upon the return value provided by the doEndTag() method. doEndTag(): This method is used to perform an action when the container encounters the end tag of the custom tag.After the start tag evaluating the custom tag body is completely depends on the return value provided by the doStartTag() method. doStartTag(): This method is used to perform a particular action when the container encounters the start tag of the custom tag.getParent(_): This method is used to return the parent tags TagHandler class object from the TagHandler class.setParent(_): This method is to inject the parent tags TagHandler class object into the present TagHandler class.setPageContext(_): This method is to inject the pageContext implicit object into the present TagHandler class.

It is the sub-interface of the JspTag Interface which provides methods to perform the action at the start and end tag of the tag. Public int doEndTag() throws JspException Public int doStartTag() throws JspException

Public void setPageContext(PageContext pageContext) Public static final int EVAL_BODY_INCLUDE To design simple classic tags the respective TagHandler class must implement the Tag interface either directly or indirectly. Simple Classic Tags does not have a body and attribute list. TagSupport is its subinterfaces or overrides classes which has a default implementation. It is designed on the basis of the Classic tag library provided by JSP API. Data Structures and Algorithms TutorialsĬlassic tags are the custom tags which implements the .Tag interface.

Basic syntax for simpletag is