Class AbstractJSON

java.lang.Object

net.sf.json.AbstractJSON

All Implemented Interfaces:

Serializable, JSON

Direct Known Subclasses:

JSONArray, JSONObject

abstract class AbstractJSON
extends Object
implements JSON

Base class for JSONObject and JSONArray.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	AbstractJSON.CycleSet
(package private) static interface	AbstractJSON.WritingVisitor

Field Summary

Fields

Modifier and Type	Field	Description
private static final AbstractJSON.WritingVisitor	CANONICAL
private static AbstractJSON.CycleSet	cycleSet
private static final org.apache.commons.logging.Log	log
private static final AbstractJSON.WritingVisitor	NORMAL

Constructor Summary

Constructors

Constructor	Description
AbstractJSON()

Method Summary

Modifier and Type	Method	Description
protected Object	_processValue(Object value, JsonConfig jsonConfig)
protected static boolean	addInstance(Object instance)	Adds a reference for cycle detection check.
protected static void	fireArrayEndEvent(JsonConfig jsonConfig)	Fires an end of array event.
protected static void	fireArrayStartEvent(JsonConfig jsonConfig)	Fires a start of array event.
protected static void	fireElementAddedEvent(int index, Object element, JsonConfig jsonConfig)	Fires an element added event.
protected static void	fireErrorEvent(JSONException jsone, JsonConfig jsonConfig)	Fires an error event.
protected static void	fireObjectEndEvent(JsonConfig jsonConfig)	Fires an end of object event.
protected static void	fireObjectStartEvent(JsonConfig jsonConfig)	Fires a start of object event.
protected static void	firePropertySetEvent(String key, Object value, boolean accumulated, JsonConfig jsonConfig)	Fires a property set event.
protected static void	fireWarnEvent(String warning, JsonConfig jsonConfig)	Fires a warning event.
private static Set	getCycleSet()
protected static void	removeInstance(Object instance)	Removes a reference for cycle detection check.
final Writer	write(Writer writer)	Write the contents as JSON text to a writer.
protected abstract void	write(Writer w, AbstractJSON.WritingVisitor v)
final Writer	writeCanonical(Writer writer)	Writes the canonicalized form of this JSON object.

Methods inherited from class Object

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

Methods inherited from interface JSON

isArray, isEmpty, size, toString, toString

Field Details

cycleSet

private static AbstractJSON.CycleSet cycleSet

log

private static final org.apache.commons.logging.Log log

NORMAL

private static final AbstractJSON.WritingVisitor NORMAL

CANONICAL

private static final AbstractJSON.WritingVisitor CANONICAL

Constructor Details

AbstractJSON

AbstractJSON()

Method Details

addInstance

protected static boolean addInstance(Object instance)

Adds a reference for cycle detection check.

Parameters:

instance - the reference to add

Returns:

true if the instance has not been added previously, false otherwise.

fireArrayEndEvent

protected static void fireArrayEndEvent(JsonConfig jsonConfig)

Fires an end of array event.

fireArrayStartEvent

protected static void fireArrayStartEvent(JsonConfig jsonConfig)

Fires a start of array event.

fireElementAddedEvent

protected static void fireElementAddedEvent(int index,
 Object element,
 JsonConfig jsonConfig)

Fires an element added event.

Parameters:

index - the index where the element was added

element - the added element

fireErrorEvent

protected static void fireErrorEvent(JSONException jsone,
 JsonConfig jsonConfig)

Fires an error event.

Parameters:

jsone - the thrown exception

fireObjectEndEvent

protected static void fireObjectEndEvent(JsonConfig jsonConfig)

Fires an end of object event.

fireObjectStartEvent

protected static void fireObjectStartEvent(JsonConfig jsonConfig)

Fires a start of object event.

firePropertySetEvent

protected static void firePropertySetEvent(String key,
 Object value,
 boolean accumulated,
 JsonConfig jsonConfig)

Fires a property set event.

Parameters:

key - the name of the property

value - the value of the property

accumulated - if the value has been accumulated over 'key'

fireWarnEvent

protected static void fireWarnEvent(String warning,
 JsonConfig jsonConfig)

Fires a warning event.

Parameters:

warning - the warning message

removeInstance

protected static void removeInstance(Object instance)

Removes a reference for cycle detection check.

_processValue

protected Object _processValue(Object value,
 JsonConfig jsonConfig)

getCycleSet

private static Set getCycleSet()

write

public final Writer write(Writer writer)
                   throws IOException

Description copied from interface: JSON

Write the contents as JSON text to a writer. For compactness, no whitespace is added.

Warning: This method assumes that the data structure is acyclical.

Specified by:

write in interface JSON

Returns:

The writer.

Throws:

IOException

writeCanonical

public final Writer writeCanonical(Writer writer)
                            throws IOException

Description copied from interface: JSON

Writes the canonicalized form of this JSON object.

Specified by:

writeCanonical in interface JSON

Throws:

IOException

write

protected abstract void write(Writer w,
 AbstractJSON.WritingVisitor v)
                       throws IOException

Throws:

IOException