Top Description Fields Constructors Methods
com.dd.plist

public final Class NSNull

extends NSObject
Class Inheritance
Imports
java.io.IOException

Internally used representation of the null value for storing it inside dictionaries and sets.
Author
Daniel Dreibrodt

Field Summary

Modifier and TypeField and Description
private static final NSNull
Inherited from com.dd.plist.NSObject:
ASCII_LINE_LENGTHNEWLINE

Constructor Summary

AccessConstructor and Description
private

Method Summary

Modifier and TypeMethod and Description
public NSObject
clone()

Implements abstract com.dd.plist.NSObject.clone.

Creates and returns a deep copy of this instance.

public int
compareTo(NSObject o)

Implements java.lang.Comparable.compareTo.

Compares this object with the specified object for order.

public boolean
equals(Object obj)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

protected void
toASCII(StringBuilder ascii, int level)

Implements abstract com.dd.plist.NSObject.toASCII.

Generates the ASCII representation of this object.

protected void
toASCIIGnuStep(StringBuilder ascii, int level)

Implements abstract com.dd.plist.NSObject.toASCIIGnuStep.

Generates the ASCII representation of this object in the GnuStep format.

pack-priv void
toBinary(BinaryPropertyListWriter out)

Implements abstract com.dd.plist.NSObject.toBinary.

Generates the binary representation of the object.

public Object
toJavaObject()

Implements abstract com.dd.plist.NSObject.toJavaObject.

Converts this NSObject into an equivalent object of the Java Runtime Environment.

pack-priv void
toXML(StringBuilder xml, int level)

Implements abstract com.dd.plist.NSObject.toXML.

Generates the XML representation of the object (without XML headers or enclosing plist-tags).

pack-priv static NSObject

Returns:

The non-null object, or null.
unwrap
(NSObject
The object.
o
)

Returns the specified NSObject if it is not a NSNull instance, or null otherwise.

pack-priv static NSObject

Returns:

The non-null object, or a NSNull instance.
wrap
(NSObject
The object.
o
)

Returns the specified NSObject if it is not null, or a NSNull instance otherwise.

Inherited from com.dd.plist.NSObject:
assignIDsfromJavaObjectgetLocationInformationindentsetLocationInformationtoJavaObjecttoXMLPropertyList

Field Detail

NULLback to summary
private static final NSNull NULL

Constructor Detail

NSNullback to summary
private NSNull()

Method Detail

cloneback to summary
public NSObject clone()

Implements abstract com.dd.plist.NSObject.clone.

Doc from com.dd.plist.NSObject.clone.

Creates and returns a deep copy of this instance.

Annotations
@Override
compareToback to summary
public int compareTo(NSObject o)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Annotations
@Override
equalsback to summary
public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Annotations
@Override
toASCIIback to summary
protected void toASCII(StringBuilder ascii, int level)

Implements abstract com.dd.plist.NSObject.toASCII.

Doc from com.dd.plist.NSObject.toASCII.

Generates the ASCII representation of this object. The generated ASCII representation does not end with a newline. Complies with the Old-Style ASCII Property Lists definition.

Annotations
@Override
toASCIIGnuStepback to summary
protected void toASCIIGnuStep(StringBuilder ascii, int level)

Implements abstract com.dd.plist.NSObject.toASCIIGnuStep.

Doc from com.dd.plist.NSObject.toASCIIGnuStep.

Generates the ASCII representation of this object in the GnuStep format. The generated ASCII representation does not end with a newline.

Annotations
@Override
toBinaryback to summary
pack-priv void toBinary(BinaryPropertyListWriter out) throws IOException

Implements abstract com.dd.plist.NSObject.toBinary.

Doc from com.dd.plist.NSObject.toBinary.

Generates the binary representation of the object.

Annotations
@Override
Exceptions
IOException:
If an I/O error occurs while writing to the stream or the object structure contains data that cannot be saved.
toJavaObjectback to summary
public Object toJavaObject()

Implements abstract com.dd.plist.NSObject.toJavaObject.

Doc from com.dd.plist.NSObject.toJavaObject.

Converts this NSObject into an equivalent object of the Java Runtime Environment.

Annotations
@Override
toXMLback to summary
pack-priv void toXML(StringBuilder xml, int level)

Implements abstract com.dd.plist.NSObject.toXML.

Doc from com.dd.plist.NSObject.toXML.

Generates the XML representation of the object (without XML headers or enclosing plist-tags).

Annotations
@Override
unwrapback to summary
pack-priv static NSObject unwrap(NSObject o)

Returns the specified NSObject if it is not a NSNull instance, or null otherwise.

Parameters
o:NSObject

The object.

Returns:NSObject

The non-null object, or null.

wrapback to summary
pack-priv static NSObject wrap(NSObject o)

Returns the specified NSObject if it is not null, or a NSNull instance otherwise.

Parameters
o:NSObject

The object.

Returns:NSObject

The non-null object, or a NSNull instance.