com.opensymphony.webwork.components
Class If

java.lang.Object
  com.opensymphony.webwork.components.Component
      com.opensymphony.webwork.components.If

public class If
extends Component

Perform basic condition flow. 'If' tag could be used by itself or with 'Else If' Tag and/or single/multiple 'Else' Tag.

• test* (Boolean) - Logic to determined if body of tag is to be displayed

 
  <ww:if test="%{false}">
            <div>Will Not Be Executed</div>
  </ww:if>
        <ww:elseif test="%{true}">
            <div>Will Be Executed</div>
  </ww:elseif>
  <ww:else>
            <div>Will Not Be Executed</div>
  </ww:else>
 
 

Author:

tmjee

See Also:

Else, ElseIf

Field Summary

static String

ANSWER

Fields inherited from class com.opensymphony.webwork.components.Component

COMPONENT_STACK, id, parameters, stack

Constructor Summary

If(com.opensymphony.xwork.util.OgnlValueStack stack)

Method Summary

boolean	end(Writer writer, String body) Callback for the end tag of this component.
void	setTest(String test) Expression to determine if body of tag is to be displayed
boolean	start(Writer writer) Callback for the start tag of this component.

Methods inherited from class com.opensymphony.webwork.components.Component

addAllParameters, addParameter, altSyntax, copyParams, determineActionURL, determineNamespace, end, fieldError, findAncestor, findString, findString, findValue, findValue, findValue, getComponentStack, getId, getParameters, getStack, popComponentStack, setId, toString, usesBody

Methods inherited from class java.lang.Object

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

Field Detail

ANSWER

public static final String ANSWER

See Also:

Constant Field Values

Constructor Detail

If

public If(com.opensymphony.xwork.util.OgnlValueStack stack)

Method Detail

setTest

public void setTest(String test)

Expression to determine if body of tag is to be displayed

start

public boolean start(Writer writer)

Description copied from class: Component

Callback for the start tag of this component. Should the body be evaluated?

Overrides:

start in class Component

Parameters:

writer - the output writer.

Returns:

true if the body should be evaluated

end

public boolean end(Writer writer,
                   String body)

Description copied from class: Component

Callback for the end tag of this component. Should the body be evaluated again?

NOTE: will pop component stack.

Overrides:

end in class Component

Parameters:

writer - the output writer.

body - the rendered body.

Returns:

true if the body should be evaluated again