{"id":1716,"date":"2011-03-17T17:27:19","date_gmt":"2011-03-17T11:57:19","guid":{"rendered":"http:\/\/JitendraZaa.com\/blog\/?p=1716"},"modified":"2011-03-17T17:27:19","modified_gmt":"2011-03-17T11:57:19","slug":"life-cycle-of-jsp-bodytag-interface","status":"publish","type":"post","link":"https:\/\/www.jitendrazaa.com\/blog\/java\/jsp\/life-cycle-of-jsp-bodytag-interface\/","title":{"rendered":"Life cycle of JSP BodyTag interface"},"content":{"rendered":"

Previous article was about the life cycle of “Tag” interface<\/a>, in this article i am going to explain the life cycle of “BodyTag” interface.<\/p>\n

The BodyTag<\/strong> interface extends IterationTag <\/strong>by defining additional methods that let a tag handler manipulate the content of evaluating its body<\/strong>.<\/p>\n

\"Life<\/a>
Life cycle of IterationTag and BodyTag interface in JSP<\/figcaption><\/figure>\n


\nAs per shown in Above figure, IterationTag extends Tag interface<\/strong> and adds one new method doAfterBody()<\/strong> that controls the reevaluation of its body.<\/p>\n

doAfterBody() Process body (re)evaluation. This method is invoked by the JSP Page implementation object after every evaluation of the body into the BodyEvaluation object. The method is not invoked if there is no body evaluation.
\nIf doAfterBody returns EVAL_BODY_AGAIN<\/em>, a new evaluation of the body will happen (followed by another invocation of doAfterBody). If doAfterBody returns SKIP_BODY<\/em>, no more body evaluations will occur, and the doEndTag method will be invoked.<\/p>\n

In BodyTag<\/strong>, There is a new action method: doInitBody()<\/strong>, which is invoked right after setBodyContent()<\/strong> and before the body evaluation. This method is only invoked if doStartTag() returns EVAL_BODY_BUFFERED<\/em>.<\/p>\n

If EVAL_BODY_BUFFERED is returned, then a BodyContent object will be created (by code generated by the JSP compiler) to capture the body evaluation.<\/p>\n

Example of Tag and BodyTag interface:<\/strong>
\nTag Interface:<\/p>\n

\n<up:userPicker multiSelect=\"\u009dtrue\"\u009d \/>\n<\/pre>\n
BodyTag interface:<\/p>\n
\n<up:userPicker multiSelect=\"\u009dtrue\"\u009d>\nSelect the User from UserPicker :\n<\/up:userPicker>\n<\/pre>\n
Next article :\u00a0How to Create JSP Custom Tag \u2013 using Tag interface or TagSupport<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Life cycle of JSP BodyTag interface<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"jz_research_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[4],"tags":[330],"class_list":["post-1716","post","type-post","status-publish","format-standard","hentry","category-jsp","tag-jsp"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1724,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/how-to-create-jsp-custom-tag-using-bodytag-interface-or-bodytagsupport\/","url_meta":{"origin":1716,"position":0},"title":"How to Create JSP Custom Tag \u2013 using BodyTag interface or BodyTagSupport","author":"Jitendra","date":"March 17, 2011","format":false,"excerpt":"Tutorial on How to Create JSP Custom Tag \u2013 using BodyTag interface or BodyTagSupport","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"How to Create Custom Tag in JSP","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2011\/03\/How-to-Create-Custom-Tag-in-JSP.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1720,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/how-to-create-jsp-custom-tag-using-tag-interface-or-tagsupport\/","url_meta":{"origin":1716,"position":1},"title":"How to Create JSP Custom Tag \u2013 using Tag interface or TagSupport","author":"Jitendra","date":"March 17, 2011","format":false,"excerpt":"Tutorial of creating JSP Custom Tag \u2013 using Tag interface or TagSupport in JAVA","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"How to Create Custom Tag in JSP","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2011\/03\/How-to-Create-Custom-Tag-in-JSP.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1712,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/jsp\/life-cycle-of-jsp-tag-interface\/","url_meta":{"origin":1716,"position":2},"title":"Life cycle of JSP Tag interface","author":"Jitendra","date":"March 17, 2011","format":false,"excerpt":"Life cycle of JSP Tag interface in Java","rel":"","context":"In "JSP"","block_context":{"text":"JSP","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/jsp\/"},"img":{"alt_text":"Life Cycle of Tag Interface","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2011\/03\/Life-Cycle-of-Tag-Interface.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2017,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/java-j2ee-interview-questions-1\/","url_meta":{"origin":1716,"position":3},"title":"Java – J2EE Interview Questions – 1","author":"Jitendra","date":"April 15, 2011","format":false,"excerpt":"JAVA - 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