{"id":3920,"date":"2014-03-30T06:23:49","date_gmt":"2014-03-30T06:23:49","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/what-are-required-and-rtexprvalue-used-for-collection-of-common-programming-errors\/"},"modified":"2014-03-30T06:23:49","modified_gmt":"2014-03-30T06:23:49","slug":"what-are-required-and-rtexprvalue-used-for-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/what-are-required-and-rtexprvalue-used-for-collection-of-common-programming-errors\/","title":{"rendered":"What are &lt;required&gt; and &lt;rtexprvalue&gt; used for?-Collection of common programming errors"},"content":{"rendered":"<p>The &#8220;rtexprvalue&#8221; element defined in a TLD is captures the dynamic behavior of an attribute. The value can be either true or false. A false value in the dynamic column means that only a static string value can be specified for the attribute. A true value means that a request-time attribute value can be specified. As defined in the JSP specification, a &#8220;request-time attribute value&#8221; can be either a Java expression, an EL expression, or a value set by a .<\/p>\n<p>The &#8220;required&#8221; defines if the nesting attribute is required or optional. If not present then the default is &#8220;false&#8221;, i.e the attribute is optional.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The &#8220;rtexprvalue&#8221; element defined in a TLD is captures the dynamic behavior of an attribute. The value can be either true or false. A false value in the dynamic column means that only a static string value can be specified for the attribute. A true value means that a request-time attribute value can be specified. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3920","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=3920"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3920\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=3920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=3920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=3920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}