public final class JSONNull extends Object implements JSON
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object object)
A Null object is equal to the null value and to itself.
|
static JSONNull |
getInstance()
Returns the singleton instance of JSONNull
|
int |
hashCode() |
boolean |
isArray()
Returns true if this object is a JSONArray, false otherwise.
|
boolean |
isEmpty()
Returns true if this object has no elements or keys.
|
int |
size()
Returns the number of properties in an object or the size of the array.
|
String |
toString()
Get the "null" string value.
|
String |
toString(int indentFactor)
Make a prettyprinted JSON text.
|
String |
toString(int indentFactor,
int indent)
Make a prettyprinted JSON text.
|
Writer |
write(Writer writer)
Write the contents as JSON text to a writer.
|
Writer |
writeCanonical(Writer w)
Writes the canonicalized form of this JSON object.
|
public static JSONNull getInstance()
public boolean equals(Object object)
public boolean isArray()
JSON
public boolean isEmpty()
JSON
public int size()
JSON
public String toString()
public String toString(int indentFactor)
JSON
Warning: This method assumes that the data structure is acyclical.
public String toString(int indentFactor, int indent)
JSON
Warning: This method assumes that the data structure is acyclical.
toString
in interface JSON
indentFactor
- The number of spaces to add to each level of
indentation.indent
- The indentation of the top level.{
(left brace)
and ending with }
(right brace).public Writer write(Writer writer) throws IOException
JSON
Warning: This method assumes that the data structure is acyclical.
write
in interface JSON
IOException
public Writer writeCanonical(Writer w) throws IOException
JSON
writeCanonical
in interface JSON
IOException
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