jodd.servlet.tag
Class LoopingTagSupport

java.lang.Object
  javax.servlet.jsp.tagext.SimpleTagSupport
      jodd.servlet.tag.LoopingTagSupport

All Implemented Interfaces:

javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.SimpleTag

Direct Known Subclasses:

ForTag, LoopTag

public abstract class LoopingTagSupport
extends javax.servlet.jsp.tagext.SimpleTagSupport

Support for looping tags.

Field Summary

protected int	end
protected int	modulus
protected int	start
protected java.lang.String	status
protected int	step

Constructor Summary

LoopingTagSupport()

Method Summary

protected void	loopBody() Loops body.
protected void	prepareStepDirection() Shorter variant of prepareStepDirection(boolean, boolean).
protected void	prepareStepDirection(boolean autoDirection, boolean checkDirection) Prepares step value.
void	setEnd(int end) Sets the end loop value (inclusive).
void	setModulus(int modulus) Specifies modulus value for the looping status.
void	setStart(int start) Sets the first loop value (inclusive).
void	setStatus(java.lang.String status) Specifies status variable name.
void	setStep(int step) Specifies the loop step.

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

doTag, findAncestorWithClass, getJspBody, getJspContext, getParent, setJspBody, setJspContext, setParent

Methods inherited from class java.lang.Object

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

Field Detail

start

protected int start

end

protected int end

step

protected int step

status

protected java.lang.String status

modulus

protected int modulus

Constructor Detail

LoopingTagSupport

public LoopingTagSupport()

Method Detail

setStart

public void setStart(int start)

Sets the first loop value (inclusive).

setEnd

public void setEnd(int end)

Sets the end loop value (inclusive).

setStep

public void setStep(int step)

Specifies the loop step. If step is 0, it will be set to +1 or -1, depending on start and end values.

setStatus

public void setStatus(java.lang.String status)

Specifies status variable name. If omitted, status will not be used.

setModulus

public void setModulus(int modulus)

Specifies modulus value for the looping status.

prepareStepDirection

protected void prepareStepDirection()

Shorter variant of prepareStepDirection(boolean, boolean).

prepareStepDirection

protected void prepareStepDirection(boolean autoDirection,
                                    boolean checkDirection)

Prepares step value. If step is 0, it will be set to +1 or -1, depending on start and end value.

If autoDirection flag is true then it is assumed that step is positive, and that direction (step sign) should be detected from start and end value.

If checkDirection flag is true than it checks loop direction (step sign) based on start and end value. Throws an exception if direction is invalid. If autoDirection is set, direction checking is skipped.

loopBody

protected void loopBody()
                 throws javax.servlet.jsp.JspException

Loops body.

Throws:

javax.servlet.jsp.JspException