Package org.apache.juneau.bean.html5

Class Meta

java.lang.Object

org.apache.juneau.bean.html5.HtmlElement<SELF>

org.apache.juneau.bean.html5.HtmlElementVoid<Meta>

org.apache.juneau.bean.html5.Meta

@Marshalled(typeName="meta")
public class Meta
extends HtmlElementVoid<Meta>

DTO for an HTML <meta> element.

The meta element represents metadata about the document. It provides information about the document that is not displayed to users but is used by browsers, search engines, and other web services. Common uses include character encoding, viewport settings, SEO information, and social media tags.

Examples:

// Character encoding Meta meta1 = meta().charset("utf-8"); // Viewport for responsive design Meta meta2 = meta() .name("viewport") .content("width=device-width, initial-scale=1.0"); // SEO description Meta meta3 = meta() .name("description") .content("This is a sample web page with meta information"); // Open Graph tags for social media Meta meta4 = meta() .property("og:title") .content("My Web Page"); // HTTP-equiv for cache control Meta meta5 = meta() .httpequiv("Cache-Control") .content("no-cache, no-store, must-revalidate");

The following convenience methods are provided for constructing instances of this bean:

• HtmlBuilder
  • meta()

See Also:

• juneau-bean-html5

Constructor Summary

Constructors

Constructor	Description
Meta()	Creates an empty Meta element.

Method Summary

Modifier and Type	Method	Description
Meta	charset(String value)	charset attribute.
Meta	content(String value)	content attribute.
Meta	httpequiv(String value)	http-equiv attribute.
Meta	name(String value)	name attribute.

Methods inherited from class org.apache.juneau.bean.html5.HtmlElement

accesskey, attr, attrUri, class_, contenteditable, deminimize, dir, getAttr, getAttr, getAttrs, hidden, id, lang, onabort, onblur, oncancel, oncanplay, oncanplaythrough, onchange, onclick, oncuechange, ondblclick, ondurationchange, onemptied, onended, onerror, onfocus, oninput, oninvalid, onkeydown, onkeypress, onkeyup, onload, onloadeddata, onloadedmetadata, onloadstart, onmousedown, onmouseenter, onmouseleave, onmousemove, onmouseout, onmouseover, onmouseup, onmousewheel, onpause, onplay, onplaying, onprogress, onratechange, onreset, onresize, onscroll, onseeked, onseeking, onselect, onshow, onstalled, onsubmit, onsuspend, ontimeupdate, ontoggle, onvolumechange, onwaiting, self, setAttrs, spellcheck, style, tabindex, title, toString, translate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

Meta

public Meta()

Creates an empty Meta element.

Method Details

charset

public Meta charset(String value)

charset attribute.

Specifies the character encoding for the HTML document. Should be placed early in the document head.

Common values:

• "UTF-8" - Unicode UTF-8 encoding (recommended)
• "ISO-8859-1" - Latin-1 encoding
• "windows-1252" - Windows-1252 encoding

Parameters:

value - The character encoding for the document. Can be null to unset the attribute.

Returns:

This object.

content

public Meta content(String value)

content attribute.

Specifies the value associated with the name or http-equiv attribute. The content varies depending on the type of metadata being defined.

Parameters:

value - The metadata value (e.g., description text, viewport settings, etc.). Can be null to unset the attribute.

Returns:

This object.

httpequiv

public Meta httpequiv(String value)

http-equiv attribute.

Specifies a pragma directive that simulates an HTTP header. Used with the content attribute.

Common values:

• "content-type" - Document content type and character encoding
• "refresh" - Page refresh or redirect timing
• "expires" - Document expiration date
• "cache-control" - Caching directives
• "pragma" - Cache control (legacy)
• "set-cookie" - Cookie settings
• "x-ua-compatible" - Browser compatibility mode

Parameters:

value - The HTTP header name to simulate. Can be null to unset the attribute.

Returns:

This object.

name

public Meta name(String value)

name attribute.

Specifies the name of the metadata property. Used with the content attribute to define document metadata.

Common values:

• "description" - Page description for search engines
• "keywords" - Keywords for search engines
• "author" - Page author
• "viewport" - Viewport settings for mobile devices
• "robots" - Instructions for search engine crawlers

Parameters:

value - The name of the metadata property. Can be null to unset the attribute.

Returns:

This object.