Class PageUpTag

java.lang.Object

jakarta.servlet.jsp.tagext.TagSupport

org.deltava.taglib.BrowserInfoTag

org.deltava.taglib.html.ElementTag

org.deltava.taglib.html.LinkTag

org.deltava.taglib.view.ScrollTag

org.deltava.taglib.view.PageUpTag

All Implemented Interfaces:

jakarta.servlet.jsp.tagext.IterationTag, jakarta.servlet.jsp.tagext.JspTag, jakarta.servlet.jsp.tagext.Tag, Serializable

public class PageUpTag
extends ScrollTag

A JSP tag to handle Page Up links at the bottom of a view page.

Since:

1.0

Version:

10.0

Author:

Luke

See Also:

• Serialized Form

Field Summary

Fields inherited from class ScrollTag

_scrollBarTag, _tagLabel, _viewTag

Modifier and Type	Field	Description
protected ScrollBarTag	_scrollBarTag
protected String	_tagLabel
protected TableTag	_viewTag

Fields inherited from class ElementTag

_classes, _data, _out

Modifier and Type	Field	Description
protected final Collection<String>	_classes
protected final XMLRenderer	_data
protected jakarta.servlet.jsp.JspWriter	_out

Fields inherited from class jakarta.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface jakarta.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface jakarta.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

Constructors

Constructor	Description
PageUpTag()	Creates a new tag with the default label of "PAGE UP".

Method Summary

Modifier and Type	Method	Description
int	doEndTag()	Closes the link tag and outputs it to the JSP output stream.
int	doStartTag()	Renders the link and label to the JSP output stream.

Methods inherited from class ScrollTag

buildParameters, renderLabel, setTarget, setText, setUrl, validateTag

Modifier and Type	Method	Description
protected static String	buildParameters(Map<String,String> params)	A helper method to bundle request parameters into a URL string.
protected void	renderLabel()	Outputs the tag label to the JSP output stream.
final void	setTarget(String targetFrame)	Updates the target frame for this tag.
void	setText(String label)	Updates the URL label text.
final void	setUrl(String cmd)	Updates the URL for this tag.
protected void	validateTag()	Validates the tag to ensure it is contained within an enclosing <view:table> tag and an enclosing <view:scrollbar> tag.

Methods inherited from class LinkTag

release, setAnchor, setExternal, setLabel, setOnClick, validateLink

Modifier and Type	Method	Description
void	release()
void	setAnchor(String a)	Sets the anchor for this link.
void	setExternal(boolean isExternal)	Marks this link as an external link.
void	setLabel(String label)	Sets the label for this link.
void	setOnClick(String js)	Sets the JavaScript onClick event for this link.
protected void	validateLink()	Validates the tag to ensure a URL/onClick event has been set.

Methods inherited from class ElementTag

getFormIndexCount, getName, getParentFormTag, setClassName, setID, setNumericAttr, setPageContext, setStyle

Modifier and Type	Method	Description
protected int	getFormIndexCount()	Gets and increments the current tab index count for the parent form tag.
protected String	getName()	Returns the type of HTML element this tag generated.
protected FormTag	getParentFormTag()	Returns the parent form tag.
void	setClassName(String cName)	Sets the CSS class name of this HTML element.
void	setID(String id)	Sets the ID of this HTML element.
protected void	setNumericAttr(String attrName, int value, int minValue)	Sets a numeric attribute.
void	setPageContext(jakarta.servlet.jsp.PageContext ctxt)
void	setStyle(String style)	Associates a CSS style with this HTML element.

Methods inherited from class BrowserInfoTag

getBrowserContext, passedCAPTCHA

Modifier and Type	Method	Description
protected HTTPContextData	getBrowserContext()	Fetches the browser data.
protected boolean	passedCAPTCHA()	Returns whether the user has passed CAPTCHA validation.

Methods inherited from class jakarta.servlet.jsp.tagext.TagSupport

doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setParent, setValue

Methods inherited from class Object

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

Constructor Details

PageUpTag

public PageUpTag()

Creates a new tag with the default label of "PAGE UP".

Method Details

doStartTag

public int doStartTag()
               throws jakarta.servlet.jsp.JspException

Renders the link and label to the JSP output stream.

Specified by:

doStartTag in interface jakarta.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class LinkTag

Returns:

TagSupport.SKIP_BODY

Throws:

jakarta.servlet.jsp.JspException - if an error occurs

doEndTag

public int doEndTag()
             throws jakarta.servlet.jsp.JspException

Closes the link tag and outputs it to the JSP output stream.

Specified by:

doEndTag in interface jakarta.servlet.jsp.tagext.Tag

Overrides:

doEndTag in class LinkTag

Returns:

TagSupport.EVAL_PAGE

Throws:

jakarta.servlet.jsp.JspException - if an error occurs