com.jstatcom.model
Class JSCString

java.lang.Object
  com.jstatcom.model.AbstractJSCData
      com.jstatcom.model.JSCString

All Implemented Interfaces:

JSCData

public final class JSCString
extends AbstractJSCData

A string wrapper that conforms to the JSCData interface.

Whenever the value of this data object changes, registered JSCDataListeners are notified via a JSCDataEvent. If not otherwise stated, the event objects always contain the values before the change and after the change.

This class is thread-safe. All access to mutable data is synchronized. All events are fired outside the synchronized blocks.

Author:

Markus Kraetzig

Field Summary

static javolution.xml.XmlFormat<JSCString>

JSCString_XML XML format field for (de)serialization.

Constructor Summary

JSCString(java.lang.String name)
Creates an empty JSCString.

JSCString(java.lang.String name, java.lang.String value)
Creates a JSCString from value.

Method Summary

void	clear() Clears this data object.
JSCString	copy() Gets a copy of the current object.
boolean	isEmpty() Gets whether this is empty.
boolean	isEqual(JSCData o) Gets whether the values of this data object and other are logically equal.
java.lang.String	name() Gets the name of the data object.
void	setVal(java.lang.String newValue) Sets the value of this to newValue.
java.lang.String	string() Gets the stored string value.
JSCTypes	type() Gets the type of this JSCData object.
java.lang.Object	value() Gets the underlying value, which is stored as a String.

Methods inherited from class com.jstatcom.model.AbstractJSCData

addJSCDataListener, display, getJSCProperty, removeJSCDataListener, removeJSCProperty, setJSCProperty, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

JSCString_XML

public static final javolution.xml.XmlFormat<JSCString> JSCString_XML

XML format field for (de)serialization.

Constructor Detail

JSCString

public JSCString(java.lang.String name)

Creates an empty JSCString.

Parameters:

name - the identifier of that object

Throws:

java.lang.IllegalArgumentException - if name is not valid or if (name == null)

See Also:

JSCConstants.isValidName(java.lang.String)

JSCString

public JSCString(java.lang.String name,
                 java.lang.String value)

Creates a JSCString from value.

Parameters:

name - the identifier of that object

value - the String to be used as value

Throws:

java.lang.IllegalArgumentException - if name is not valid or if (name == null)

See Also:

JSCConstants.isValidName(java.lang.String)

Method Detail

clear

public void clear()

Clears this data object. Fires:

• JSCDataEventTypes.EMPTY_STATE event
• JSCDataEventTypes.VALUE_CHANGED event

if it was not empty before. After calling this method isEmpty returns true.

copy

public JSCString copy()

Description copied from interface: JSCData

Gets a copy of the current object. Implementations of this method must fulfil the two conditions:

• a.isEqual(a.copy())- compares values
• a.getName().equals(a.copy().getName())- compares name

JSCDataListeners attached to the original object should not be copied.

Returns:

a clonelike copy of the original object

See Also:

JSCData

isEmpty

public boolean isEmpty()

Gets whether this is empty. This method returns true, if value returns null. It does not check whether the value string has a length > 0.

Returns:

true if empty

isEqual

public boolean isEqual(JSCData o)

Description copied from interface: JSCData

Gets whether the values of this data object and other are logically equal.

Returns:

true if considered equal according to the logic of the representation

See Also:

JSCData

name

public java.lang.String name()

Description copied from interface: JSCData

Gets the name of the data object. It must fulfil the requirements for variable names defined in JSCConstants.

Returns:

the name

See Also:

JSCData

setVal

public void setVal(java.lang.String newValue)

Sets the value of this to newValue. Fires a JSCDataEvent of type:

• JSCDataEventTypes.VALUE_CHANGED if !newValue.equals(getString())
• JSCDataEventTypes.EMPTY_STATE if newValue != null and this was empty before
• JSCDataEventTypes.EMPTY_STATE if newValue == null and this was not empty before

Parameters:

newValue - the new value

string

public java.lang.String string()

Gets the stored string value.

Returns:

a String or null if empty

type

public JSCTypes type()

Gets the type of this JSCData object.

Returns:

JSCTypes.STRING

See Also:

JSCTypes

value

public java.lang.Object value()

Gets the underlying value, which is stored as a String.

Returns:

the value object or null if this is empty