com.jcorporate.expresso.core.controller
Class Output

java.lang.Object
  com.jcorporate.expresso.core.controller.ControllerElement
      com.jcorporate.expresso.core.controller.Output

All Implemented Interfaces:

Cacheable, Cloneable, Serializable

public class Output

extends ControllerElement

implements Cloneable, Cacheable, Serializable

An item returned from a controller to provide output/feedback to the client.
An Output object is one of the three types of object that can be returned by a Controller moving to a new state. The other two are Input and Action items.
An Output item can be a single item, or a list of items, using the "nested" methods in the ControllerElement class.

See Also:

Serialized Form

Constructor Summary

Output()
Default constructor

Output(String c)
Convenience constructor for creating an output with a specific string as it's contents in one step

Output(String name, String c)
Convenience constructor for creating an output with a specific string as it's contents and a name in one step

Method Summary

void	addNested(Output o) Add a new nested output item to this item
void	clearUsedCount() Clears the used count
Object	clone() Deep copy clone the object
static ControllerElement	fromXML(org.w3c.dom.Node n) Return a controller element based upon the xml fragment
String	getAlignment() Get the suggested alignment for this item
String	getContent() Get the "contents" of this Output, the string value that this Output object represents
String	getKey() Get the name of this output element
String	getStyle() /** Return the suggested "style" for displaying this Output item
long	getUsedCount()
boolean	hasNested(String nestedName) Does this output have a nested item with the given name?
void	incrementUsedCount()
void	setAlignment(String newAlignment) Method used by the Controller to specify a suggested alignment for this Output item
void	setContent(String newContent) Used by the Controller to specify the contents string of this Output
void	setKey(String newKey)
void	setStyle(String newStyle) Used by the Controller to set a suggested "style" for displaying this Output item
FastStringBuffer	toXML(FastStringBuffer stream) Concert the object to an xml fragment.

Methods inherited from class com.jcorporate.expresso.core.controller.ControllerElement

addNested, allNested, fromXML, getAttribute, getAttributes, getAttributesOrNull, getContent, getContents, getControllerResponse, getDescription, getDisplayLength, getLabel, getLines, getName, getNested, getNested, getNestedCount, getNestedIterator, getNestedMap, getNestedOrNull, getParent, getTitle, getType, remove, removeNested, setAttribute, setControllerResponse, setDescription, setDisplayLength, setLabel, setLines, setName, setParent, setType

Methods inherited from class java.lang.Object

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

Constructor Detail

Output

public Output()

Default constructor

Output

public Output(String c)

Convenience constructor for creating an output with a specific string as it's contents in one step

Parameters:

c - The string contents of this Output item

Output

public Output(String name,
              String c)
       throws ControllerException

Convenience constructor for creating an output with a specific string as it's contents and a name in one step

Parameters:

name - The name of this new Output item

c - The string contents of the Output item

Throws:

ControllerException

Method Detail

addNested

public void addNested(Output o)

Add a new nested output item to this item

Parameters:

o - The new Output item to be nested into this one

clearUsedCount

public void clearUsedCount()

Clears the used count

clone

public Object clone()
             throws CloneNotSupportedException

Deep copy clone the object

Overrides:

clone in class ControllerElement

Returns:

Copy of this current output

Throws:

CloneNotSupportedException

getAlignment

public String getAlignment()

Get the suggested alignment for this item

Returns:

The suggested alignment for this Output item

getContent

public String getContent()

Get the "contents" of this Output, the string value that this Output object represents

Returns:

A String value for the contents of this Output

getKey

public String getKey()

Get the name of this output element

Specified by:

getKey in interface Cacheable

Returns:

the key of the output Element

getStyle

public String getStyle()

/** Return the suggested "style" for displaying this Output item

Returns:

A "style" string as suggested by the Controller

getUsedCount

public long getUsedCount()

Returns:

the number of times this output has been used

hasNested

public boolean hasNested(String nestedName)
                  throws ControllerException

Does this output have a nested item with the given name?

Parameters:

nestedName - The name to check against

Returns:

true if there is such an element, else false

Throws:

ControllerException - upon error

incrementUsedCount

public void incrementUsedCount()

setAlignment

public void setAlignment(String newAlignment)

Method used by the Controller to specify a suggested alignment for this Output item

Parameters:

newAlignment - A String suggesting an alignment to the client when displaying this Output item

setContent

public void setContent(String newContent)

Used by the Controller to specify the contents string of this Output

Parameters:

newContent - The new contents string

setKey

public void setKey(String newKey)

Parameters:

newKey - The new Key for the output

setStyle

public void setStyle(String newStyle)

Used by the Controller to set a suggested "style" for displaying this Output item

Parameters:

newStyle - The new "style" to set for this output object

toXML

public FastStringBuffer toXML(FastStringBuffer stream)

Concert the object to an xml fragment.

Overrides:

toXML in class ControllerElement

Parameters:

stream - The fastStringBuffer to append to

Returns:

a FastStingBuffer object that represents this output in an xml fragment

fromXML

public static ControllerElement fromXML(org.w3c.dom.Node n)
                                 throws ControllerException

Return a controller element based upon the xml fragment

Parameters:

n - a DOM node

Returns:

a built ControllerElement

Throws:

ControllerException - if the nodes do not match what we expect