Package net.sf.basedb.clients.web.taglib.table

Class ExtensionCells

java.lang.Object

javax.servlet.jsp.tagext.TagSupport

javax.servlet.jsp.tagext.BodyTagSupport

net.sf.basedb.clients.web.taglib.table.ExtensionCells

All Implemented Interfaces:

Serializable, BodyTag, IterationTag, JspTag, Tag

public class ExtensionCells
extends BodyTagSupport

Tag for generating content from extension columns.

Syntax:

   <tbl:xt-cells
      dc=... 
      item=...
      >
      <tbl:cell column="xt-columns" />
   </tbl:xt-cells>

Tag attributes

Attribute	Default value	Required	Description
dc	-	yes	A DbControl that can be used to query the database.
item	-	yes	The current item in the table.

Since:

3.2

Author:

Nicklas

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private ListColumnAction	current
private DbControl	dc
private Iterator<ListColumnAction>	extensionColumns
private Object	item
private static long	serialVersionUID

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 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

Constructors

Constructor	Description
ExtensionCells()

Method Summary

Modifier and Type	Method	Description
int	doAfterBody()
int	doStartTag()
(package private) Object	getCurrentValue(Cell cell)	Get the value for the current column and item and update other settings for the cell.
(package private) String	getNextColumnId()	This is called by the Cell taglib when the next extension column is about to be processed.
private void	readObject(ObjectInputStream ois)
void	setDc(DbControl dc)
void	setItem(Object item)
private void	writeObject(ObjectOutputStream ois)

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

doEndTag, doInitBody, getBodyContent, getPreviousOut, release, setBodyContent

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

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

item

private Object item

dc

private DbControl dc

extensionColumns

private Iterator<ListColumnAction> extensionColumns

current

private ListColumnAction current

Constructor Details

ExtensionCells

public ExtensionCells()

Method Details

setDc

public void setDc(DbControl dc)

setItem

public void setItem(Object item)

doStartTag

public int doStartTag()
               throws JspException

Specified by:

doStartTag in interface Tag

Overrides:

doStartTag in class BodyTagSupport

Throws:

JspException

doAfterBody

public int doAfterBody()
                throws JspException

Specified by:

doAfterBody in interface IterationTag

Overrides:

doAfterBody in class BodyTagSupport

Throws:

JspException

readObject

private void readObject(ObjectInputStream ois)
                 throws ClassNotFoundException,
IOException

Throws:

ClassNotFoundException

IOException

writeObject

private void writeObject(ObjectOutputStream ois)
                  throws IOException

Throws:

IOException

getNextColumnId

String getNextColumnId()

This is called by the Cell taglib when the next extension column is about to be processed. The method should step to the next column and return the column id.

getCurrentValue

Object getCurrentValue(Cell cell)

Get the value for the current column and item and update other settings for the cell. Note that it is important that the current value is retrieved first. This can give the action an opportunity to return different values for the other settings depending on the current item.