com.bea.wlw.netui.tags.databinding.grid.column
Class BasicColumn

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          com.bea.wlw.netui.tags.AbstractBaseTag
              com.bea.wlw.netui.tags.databinding.base.StructuredBaseTag
                  com.bea.wlw.netui.tags.databinding.grid.GridComponent
                      com.bea.wlw.netui.tags.databinding.grid.column.GridColumn
                          com.bea.wlw.netui.tags.databinding.grid.column.FormattableColumn
                              com.bea.wlw.netui.tags.databinding.grid.column.SortFilterColumn
                                  com.bea.wlw.netui.tags.databinding.grid.column.BasicColumn

All Implemented Interfaces:

Formattable, HtmlConstants, Serializable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

public class BasicColumn
extends SortFilterColumn

A BasicColumn simply renders data from the data set into the page. The data is referenced with the name attribute and the title is specified using the title attribute.

Required resources:

The JavaScript files _grid.js must be included in any JSP page with a grid that uses a filter-enabled BasicColumn. The Page Flow Wizard adds the _grid.js file to a project's /resources/grid directory, when you build a page flow over a database control. The JSP should contain:

<script language="javascript" src="/resources/grid/_grid.js" type="text/javascript"></script>

Attribute Descriptions
Attribute	Required	Runtime Expression Evaluation	Data Bindable
filterable	No	Yes	No
	A boolean specifying whether the anchors can be filtered.
filterAction	No	Yes	No
	The name of the action that will perform the filter operation.
name	No	Yes	Yes
	If specified, the value of the data is extracted from the Grid's current data item. Otherwise, the title attribute is used for the cell's content.
sortable	No	Yes	No
	A boolean specifying whether the basic column's contents can be sorted.
sortAction	No	Yes	No
	The name of the action that will perform the sort operation.
title	No	No	No
	The text that will be rendered in the header for this column.

See Also:

Serialized Form

Example:

This sample shows <netui-data:basicColumn> tags used in a com.bea.wlw.tags.databinding.grid.Grid tag.

         <netui-data:grid dataSource="{pageFlow.allRows}" name="{pageFlow.gridName}">
             <netui-data:gridStyle styleClassPrefix="gridStyle"/>
             <netui-data:pager renderInHeader="true" action="pageAction" renderInFooter="true"/>
             <netui-data:columns filterAction="begin" sortAction="begin">
                 <netui-data:anchorColumn action="detailsItems" addRowId="true" title="Details"/>
                 <netui-data:anchorColumn action="updateItems" addRowId="true" title="Edit"/>
                 <netui-data:basicColumn filterable="true" title="Itemnumber" sortable="true" name="itemnumber"/>
                 <netui-data:basicColumn filterable="true" title="Itemname" sortable="true" name="itemname"/>
                 <netui-data:basicColumn filterable="true" title="Quantityavailable" sortable="true" name="quantityavailable"/>
                 <netui-data:basicColumn filterable="true" title="Price" sortable="true" name="price"/>
             </netui-data:columns>
         </netui-data:grid>

Code Sample

[BEA_HOME]/weblogic81/samples/workshop/SamplesApp/WebApp/tagSamples/netui_databinding/grid/grid.jsp

Beadoc.see:

<netui-data:grid> Tag Sample

Beadoc.tagdescription:

This tag renders a data set as a column in an HTML table.

The data set is referenced with the name attribute and the column header is specified using the title attribute.

Field Summary

Fields inherited from class com.bea.wlw.netui.tags.databinding.base.StructuredBaseTag

EMPTY_STRING

Fields inherited from class com.bea.wlw.netui.tags.AbstractBaseTag

ATTR_GENERAL, ATTR_GENERAL_EXPRESSION, ATTR_JAVASCRIPT, ATTR_STYLE, JAVASCRIPT_STATUS, NETUI_UNIQUE_CNT

Fields inherited from class javax.servlet.jsp.tagext.BodyTagSupport

bodyContent

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

id, pageContext

Fields inherited from interface com.bea.wlw.netui.tags.html.HtmlConstants

ACCEPT, ACCESSKEY, ACTION, ALIGN, ALINK, ALT, ANCHOR, BACKGROUND, BASE, BGCOLOR, BODY, BORDER, BR, CAPTION, CELLPADDING, CELLSPACING, CHAR, CHAROFF, CHARSET, CHECKED, CLASS, COLS, COORDS, DIR, DISABLED, DIV, ENCTYPE, FOR, FORM, FORM_GET, FORM_POST, FRAME, HEIGHT, HREF, HREFLANG, HSPACE, HTML, ID, IMAGE, INPUT, INPUT_BUTTON, INPUT_CHECKBOX, INPUT_FILE, INPUT_HIDDEN, INPUT_IMAGE, INPUT_PASSWORD, INPUT_RADIO, INPUT_RESET, INPUT_SUBMIT, INPUT_TEXT, ISMAP, LABEL, LANG, LINK, LONGDESC, MAXLENGTH, METHOD, NAME, ONBLUR, ONCHANGE, ONCLICK, ONDBLCLICK, ONFOCUS, ONKEYDOWN, ONKEYPRESS, ONKEYUP, ONLOAD, ONMOUSEDOWN, ONMOUSEMOVE, ONMOUSEOUT, ONMOUSEOVER, ONMOUSEUP, ONRESET, ONSELECT, ONSUBMIT, ONUNLOAD, OPTION, READONLY, REL, REV, ROWS, RULES, SELECT, SHAPE, SIZE, SPAN, SRC, STYLE, SUMMARY, TABINDEX, TABLE, TARGET, TD, TEXT, TEXTAREA, TITLE, TR, TYPE, USEMAP, VALIGN, VALUE, VLINK, VSPACE, WIDTH

Fields inherited from interface javax.servlet.jsp.tagext.BodyTag

EVAL_BODY_BUFFERED, EVAL_BODY_TAG

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

EVAL_BODY_AGAIN

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

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

BasicColumn()

Method Summary

String	getTagName() Get the name of this tag.
protected void	localRelease() Reset all of the fields of this tag.
String	renderDataCell() For each cell in a column that is rendered for an item in the Grid's dataset, this method is called to render the data for the "current" item.
String	renderFooterCell() Render the footer.

Methods inherited from class com.bea.wlw.netui.tags.databinding.grid.column.SortFilterColumn

calculateURL, canFilter, canSort, computeFilterAction, computeSortAction, getFilterAction, getName, getSortAction, getTitle, getTitleText, isFilterable, isSortable, prepare, renderFilterMarkup, renderHeaderCell, renderSortMarkup, setFilterable, setFilterAction, setName, setSortable, setSortAction, setTitle, verifyAttributes

Methods inherited from class com.bea.wlw.netui.tags.databinding.grid.column.FormattableColumn

addFormatter, format, renderStartTag

Methods inherited from class com.bea.wlw.netui.tags.databinding.grid.column.GridColumn

getColumns, getStyleClassPrefix, getValidContainerType, renderCloseCellTag, renderDataCellTag, renderEndTag, renderFooterCellTag, renderHeaderCellTag, renderOpenCellTag, setStyleClassPrefix

Methods inherited from class com.bea.wlw.netui.tags.databinding.grid.GridComponent

getCurrentRenderState, getGrid, getGridContext

Methods inherited from class com.bea.wlw.netui.tags.databinding.base.StructuredBaseTag

addContent, doEndTag, doStartTag, getContent, verifyStructure

Methods inherited from class com.bea.wlw.netui.tags.AbstractBaseTag

addTagIdMapping, containsExpression, evaluateAttributeToString, evaluateExpression, filter, filter, formatErrorString, formatString, getAttribute, getErrorsReport, getExpressionEvaluator, getJavaScriptUtils, getNearestForm, getNextId, getQualifiedBundleName, getScriptReporter, getUserLocale, hasErrors, isExpression, prepForRendering, registerAttribute, registerError, registerTagError, release, removeAttribute, renderAttribute, renderAttributes, reportErrors, rewriteName, setPageContext, updateExpression, write

Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport

doAfterBody, doInitBody, getBodyContent, getPreviousOut, setBodyContent

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.jsp.tagext.Tag

getParent, setParent

Constructor Detail

BasicColumn

public BasicColumn()

Method Detail

getTagName

public String getTagName()

Get the name of this tag. This is used to identify the type of this tag for reporting tag errors.

Specified by:

getTagName in class AbstractBaseTag

Returns:

a constant String representing the name of this tag.

renderDataCell

public String renderDataCell()

For each cell in a column that is rendered for an item in the Grid's dataset, this method is called to render the data for the "current" item. Using the name attribute on this tag, the value associated with that name for the current data item is rendered in a table cell here. The String contents of this cell are added to the Columns content buffer.

Specified by:

renderDataCell in class GridColumn

Returns:

the String contents of this table cell.

renderFooterCell

public String renderFooterCell()

Render the footer. This footer contains no text.

Specified by:

renderFooterCell in class GridColumn

Returns:

the emtpy string

localRelease

protected void localRelease()

Reset all of the fields of this tag.

Overrides:

localRelease in class SortFilterColumn