Tomahawk dataTable
tag
This tag is used to create table on the page.
In the columns of the table you can put any type of component like input
text box, output text, command button etc.<h:column> tag is
used to create column. There can be many column tags within dataTable
tag. You can set header and footer in this table. For this <f:facet>
tag is used. data table component and its children column component can
use header and footer facet.
We can associate this table element to backing
bean. So we can obtain data from this backing bean and display it on the
table. Association of backing bean can also be helpful for event
handling purpose. Suppose we inserted command button in columns of the
table then event handling can be applied here.CSS will help you to
enhance the appearance of the table's headers, footer, rows, columns.
Code Description :
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://myfaces.apache.org/tomahawk" prefix="t"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>t:dataTable example</title>
<style type="text/css">
<!--
body{
margin-top:30;
}
.TableRow1 {
background-color: #D0E6E0;
}
.TableRow2 {
background-color: #E8F7F1;
}
.TableColumn {
text-align: center
}
.TableClass {
font-family : verdana, Geneva, Arial, Helvetica, sans-serif;
font-size: 13px;
color: #000000;
padding: 2;
border-style: solid;
border-width: 2px;
}
.TableHeader {
color: #000000;
background-color: #F1F1F1;
padding: 3;
text-align: center;
border: none;
}
.TableFooter {
background-color: #F1F1F1;
}
-->
</style>
</head>
<body ><center>
<f:view>
<h:form id="form1" >
<t:dataTable id="dt1" value="#{TableBean.perInfoAll}"
var="item" bgcolor="#F1F1F1" border="10" cellpadding="5"
cellspacing="3" first="0" rows="4" width="50%" dir="LTR"
frame="hsides" rules="all"
summary="This is a JSF code to create dataTable."
rowClasses="TableRow1,TableRow2" columnClasses="TableColumn"
styleClass="TableClass" headerClass="TableHeader" footerClass="TableFooter">
<f:facet name="header">
<h:outputText value="Customer Information" />
</f:facet>
<t:column style="color:green; font-weight:bold"
headerstyle="background-color:#99CCFF;">
<f:facet name="header">
<t:outputText value="id" />
</f:facet>
<t:outputText value="#{item.id}"></t:outputText>
</t:column>
<t:column headerstyle="background-color:#99CCFF;">
<f:facet name="header">
<t:outputText value="name"/>
</f:facet>
<t:outputText value="#{item.name}"></t:outputText>
</t:column>
<t:column headerstyle="background-color:#99CCFF;">
<f:facet name="header">
<t:outputText value="phone"/>
</f:facet>
<t:outputText value="#{item.phone}"></t:outputText>
</t:column>
<t:column headerstyle="background-color:#99CCFF;">
<f:facet name="header">
<t:outputText value="city"/>
</f:facet>
<t:outputText value="#{item.city}"></t:outputText>
</t:column>
<t:column headerstyle="background-color:#99CCFF;">
<f:facet name="header">
<t:outputText value="pin"/>
</f:facet>
<t:outputText value="#{item.pin}"></t:outputText>
</t:column>
<f:facet name="footer">
<h:outputText value="The End" />
</f:facet>
</t:dataTable><br><br>
</h:form>
</f:view>
</center></body>
</html>
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Rendered Output : This is the output of
dataTable component.
If we set the newspaperColumns attribute to the value "2"
then it shows the output like below :
Backing bean :
package net.roseindia.web.ui;
public class TableBean {
private perInfo[] perInfoAll = new perInfo[]{
new perInfo(101, "CHANDAN", "9891444444", "Delhi", 111111),
new perInfo(102, "RAVI", "9911666666", "Bombay" ,222222),
new perInfo(103, "JOHN", "9313888888", "New York", 333333),
new perInfo(104, "ANDREW", "9911222222", "Florida" , 444444),
new perInfo(105, "SYMONDS", "9313999999", "Los Angeles", 555555),
};
public perInfo[] getperInfoAll() {
return perInfoAll;
}
public class perInfo {
int id;
String name;
String phone;
String city;
int pin;
public perInfo(int id, String name, String phone, String city, int pin) {
this.id = id;
this.name = name;
this.phone = phone;
this.city = city;
this.pin= pin;
}
public int getid() {
return id;
}
public String getname() {
return name;
}
public String getphone() {
return phone;
}
public String getcity() {
return city;
}
public int getpin() {
return pin;
}
}
}
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Html Source Code :
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>t:dataTable example</title>
<style type="text/css">
<!--
body{
margin-top:30;
}
.TableRow1 {
background-color: #D0E6E0;
}
.TableRow2 {
background-color: #E8F7F1;
}
.TableColumn {
text-align: center
}
.TableClass {
font-family : verdana, Geneva, Arial, Helvetica, sans-serif;
font-size: 13px;
color: #000000;
padding: 2;
border-style: solid;
border-width: 2px;
}
.TableHeader {
color: #000000;
background-color: #F1F1F1;
padding: 3;
text-align: center;
border: none;
}
.TableFooter {
background-color: #F1F1F1;
}
-->
</style>
</head>
<body ><center>
<form id="form1" name="form1" method="post"
action="/tomahawk_tags/pages/dataTable.jsf;
jsessionid=CB7EFA115BCB8663FB81A27BD9E1C827"
enctype="application/x-www-form-urlencoded">
<table id="form1:dt1" bgcolor="#F1F1F1" border="10"
cellpadding="5" cellspacing="3" frame="hsides" rules="all"
summary="This is a JSF code to create dataTable." width="50%"
dir="LTR" class="TableClass">
<thead>
<tr><th scope="colgroup" colspan="5" class="TableHeader">
Customer Information</th></tr>
<tr><th class="TableHeader" style="background-color:#99CCFF;">
id</th>
<th class="TableHeader"
style="background-color:#99CCFF;">name</th>
<th class="TableHeader" style="background-color:#99CCFF;">
phone</th>
<th class="TableHeader" style="background-color:#99CCFF;">
city</th><th class="TableHeader"
style="background-color:#99CCFF;">pin</th>
</tr>
</thead>
<tfoot>
<tr><td colspan="5" class="TableFooter">
The End</td></tr></tfoot>
<tbody id="form1:dt1:tbody_element">
<tr class="TableRow1">
<td class="TableColumn" style="color:green;
font-weight:bold">101</td>
<td class="TableColumn">CHANDAN</td>
<td class="TableColumn">9891444444</td>
<td class="TableColumn">Delhi</td>
<td class="TableColumn">111111</td>
</tr>
<tr class="TableRow2">
<td class="TableColumn"
style="color:green;font-weight:bold">102</td>
<td class="TableColumn">RAVI</td>
<td class="TableColumn">9911666666</td>
<td class="TableColumn">Bombay</td>
<td class="TableColumn">222222</td>
</tr>
<tr class="TableRow1">
<td class="TableColumn"
style="color:green; font-weight:bold">103</td>
<td class="TableColumn">JOHN</td>
<td class="TableColumn">9313888888</td>
<td class="TableColumn">New York</td>
<td class="TableColumn">333333</td>
</tr>
<tr class="TableRow2">
<td class="TableColumn"
style="color:green; font-weight:bold">104</td>
<td class="TableColumn">ANDREW</td>
<td class="TableColumn">9911222222</td>
<td class="TableColumn">Florida</td>
<td class="TableColumn">444444</td>
</tr>
</tbody>
</table>
<br><br>
<input type="hidden" name="form1_SUBMIT" value="1" />
<input type="hidden" name="javax.faces.ViewState"
id="javax.faces.ViewState"
value="rO0ABXVyABNbTGphdmEubGFuZy5PYmplY3Q7kM5YnxBzKWwCAAB4cAAAAAN0A
AExcHQAFC9wYWdlcy9kYXRhVGFibGUuanNw" /></form>
</center><!-- MYFACES JAVASCRIPT -->
</body>
</html>
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This tag contains attributes given below :
- id : This is the value which is used to
uniquely identify the component within the closest container like form or
subview. The main thing to remember is that its value must be a static
value.
- binding : This attribute is used to specify
the property of the backing bean with which this component instance is to be
bound.
- rendered : Its default value is true.
If this attribute is set to true then this component is presented in
the page to the user. If false, then this component is not rendered.
- columnClasses : Comma seperated list of CSS
classes that will be applied to the columns of this table.
- footerClass : This attribute takes
Space-separated list of CSS style class or classes that will be applied
to aheaderter generated for this table.
- headerClass :This attribute takes
Space-separated list of CSS style class or classes that will be applied
to any header generated for this table.
- rowClasses :It is a list of CSS classes
applied to the rows of the table. These classes should be separated by
comma. If we want to apply CSS class for individual rows then we can specify
space separated list of CSS classes. Style classes are applied to rows
in the same order that they are defined. If we have two CSS classes then
first class is applied to the first row and the second one is applied
to the second. Then again in the third row, the first CSS is applied and so
on. This process goes on till the last row of the table.
- dir : It is used to set the direction of the
text to be displayed. It can take two values LTR(left to right) and RTL
(right to left).
- lang : It is used to set the base language of
the component when displayed.
- style : It is used to set the CSS style
definition for the component.
- title : It is the standard html attribute. It
is used to set the tooltip text for this component.
- styleClass : It is used to set the CSS class
for the component. It is same as html class attribute.
- onclick : Script to be invoked when the
element is clicked.
- ondblclick : It is used for Java Script code
to be invoked when the element is double-clicked.
- onmousedown : It is used for Java Script code
to be invoked when the pointing device is pressed over this element.
- onmouseup : It is used for Java Script code
to be invoked when the pointing device is released over this element.
- onmouseover : It is used for Java Script code
to be invoked when the pointing device is moved into this element.
- onmousemove : It is used for Java Script code
to be invoked when the pointing device is moved while it is in this element.
- onmouseout : It is used for Java Script code
to be invoked when the pointing device is moved out of this element.
- onkeypress : It is used for Java Script code
to be invoked when a key is pressed over this element.
- onkeydown : It is used for Java Script code
to be invoked when a key is pressed down over this element.
- onkeyup : It is used for Java Script code to
be invoked when a key is released over this element.
- align : This attribute is used to set the
horizontal alignment of the component.
- border : This attribute is used to specify
the width of the border of this element.
- bgcolor : This attribute is used to specify
background color of the element.
- cellpadding : This sets the space between the
content and the border of the cell.
- cellspacing : It specifies the amount of
space to leave between cells.
- frame : This
attribute specifies which sides of the frame surrounding this table will be
visible. This attribute can take some values shown below :
- none
No side, Default Value
- above
Top side only
- below
Bottom side only
- hsides
Top and bottom sides only
- vsides
Right and left sides only
- lhs
Left hand side only
- rhs
Right hand side only
- box
All four sides
- border
All four sides
- rules : This
attribute is used to draw lines between cells. It can take some values given
below :
- none
No rules, default value
- groups
Between row groups
- rows
Between rows only
- cols
Between columns only
- all
Between all rows and columns
- summary : You can specify summary of the
purpose of the table.
- width : This is used to set the width of the
entire table. Its value is specified in %. Suppose we set it to 50%
then this table will be shown in the 50% space of the width of your screen.
- value : It represents the value of the
component. It represents the value over which iteration is to be done. It
may be an array or any iterator object .
- var :This is the name of the variable created
by the data table that represents the current item in the value. This
attribute helps exposing the data in the rows of the table.
- rows : This attribute specifies the number of
rows to display. This displaying will be started from the index
specified in the "first" attribute. If we set this attribute to
zero then all rows will be displayed.
- first : This is
used to specify the row number of the first row from which displaying is to
be started onwards. Suppose, this property is set to 3,displaying will
be started from the third row of the underlying data.
- preserveDataModel : This is a boolean
attribute with default value false. When it is set to false, the value
binding for the value attribute is executed each time when the page is
rendered and if it is set to true then value binding is executed only once
when the component is first created and the state is saved by the component.
The point to remember while sorting the column is that it should be set to
false sothat changes in the Data Model can be applied while sorting.
- preserveRowStates :This a boolean attribute
with default value false. This is used to specify whether the state of each
row of the table should be discarded before rendering the datatable again.
If this attribute is set to true then it can be useful if the input
components in datatable has no value binding and the entered value is to be
shown again.
- forceIdIndexFormula : This attribute
specifies formula that overrides the default row index. Be sure to provide
unique value for each row.
- sortColumn : This attribute refers to the
modal property that specifies the column name according to which the sorting
is to processed.
- sortAscending : This
attribute refers to the modal property that specifies the direction of
sorting.
- preserveSort : This boolean attribute
(default :true) is used to indicate whether the state of the sortColumn and sortAscending attribute should be saved and restored and written back to the model during the update model
phase.
- renderedIfEmpty : This boolean
attribute (default :true) is used to indicate whether this table should be rendered if the underlying DataModel is empty.
- rowIndexVar : This attribute specifies a parameter name, under which the current rowIndex is set in request scope similar to the var parameter.
- rowCountVar : This attribute specifies a parameter name, under which the rowCount is set in request scope similar to the var parameter.
- previousRowDataVar : This attribute specifies
a parameter name, under which the previous RowData Object is set in request scope similar to the rowIndexVar and rowCountVar parameters.
- sortedColumnVar : This attribute
specifies a parameter name, under which a boolean is set in request scope similar to the var parameter.
- rowOnClick : It is used for Java Script code
to be invoked when table row is clicked.
- rowOnDblClick : It is used for Java Script code
to be invoked when table row is double clicked.
- rowOnMouseDown : It is used for Java Script code
to be invoked when when a pointer button is pressed down over table row.
- rowOnMouseUp : It is used for Java Script code
to be invoked when a pointer button is released over table row.
- rowOnMouseOver : It is used for Java Script code
to be invoked when when a pointer button is moved onto table row.
- rowOnMouseMove : It is used for Java Script code
to be invoked when a pointer button is moved within table row.
- rowOnMouseOut : It is used for Java Script code
to be invoked when a pointer button is moved away from table row.
- rowOnKeyPress : It is used for Java Script code
to be invoked when a key is pressed and released over table row.
- rowOnKeyDown : It is used for Java Script code
to be invoked when a key is pressed down over table row.
- rowOnKeyUp : It is used for Java Script code
to be invoked when a key is released over table row.
- rowId : This attribute is used to set the id
for the row.
- rowStyleClass : This attribute is used to set
the CSS class for the row.
- rowStyle : This
attribute is used to set the CSS style for the row.
- rowGroupStyle : This
attribute is used to set the CSS style for grouped rows.
- rowGroupStyleClass : This
attribute is used to set the CSS class for grouped row.
- varDetailToggler :
- bodyStyleClass : This
attribute is used to set the CSS class for table body.
- bodyStyle : This
attribute is used to set the CSS style for table body.
- forceId :This is a boolean attribute with
default value false. If this attribute is set to true, the tag is forced to
render the id for the component exactly as mentioned in the id attribute of
the tag. The benefit of this attribute is that we can reference component by
id in the javascript. If we don't use this attribute with the true value
then the id for the component is presented in different format.
- forceIdIndex :This is a boolean attribute
with default value true. If this value is true then the the component
displays the index number in its id value if the component is in a list. If
this attribute is set to false then this component will not append index
number as suffix . If forcrId is set to false then its value is ignored.
- enabledOnUserRole :f the current user has
one of the roles listed in the enabledOnUserRole attribute then enabling or
disabling of the component is decided on the base of "disabled"
attribute. If disabled attribute is set to true then component is disabled
otherwise enabled. If the user is not in the above list then the component
is rendered disabled.
- visibleOnUserRole :If the current user has
one of the roles listed in the visibleOnUserRole attribute then processing
of the component is decided on the base of "rendered" attribute.
If the rendered attribute is set to true then component is not rendered
otherwise displayed on the page. On the other hand if the current user
is not in the above list then the component is not processed.
- newspaperColumns :The value of this attribute
defines the number of columns to wrap the table over. The default value for
this attribute is "1".
- newspaperOrientation : This attribute decides
the orientation of newspaper columns. It can take two values
"horizontal" and "vertical" values. The default value is
"vertical".
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