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Type (Java UNO Runtime Reference)
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com.sun.star.uno
Class Type

java.lang.Object
  extended by com.sun.star.uno.Type

public class Type
extends Object

Represents the UNO built-in type TYPE.

The UNO type is not directly mapped to java.lang.Class for at least two reasons. For one, some UNO types (like UNSIGNED SHORT) do not have a matching Java class. For another, it can be necessary to describe a type which is unknown to the Java runtime system (for example, for delaying the need of a class, so that it is possible to generate it on the fly.)

A Type is uniquely determined by its type class (a TypeClass) and its type name (a String); these two will never be null. A Type may have an additional "z class" (a java.lang.Class), giving a Java class type that corresponds to the UNO type. Also, a Type can cache a type description (a com.sun.star.uno.ITypeDescription), which can be computed and set by TypeDescription.getTypeDescription.

Field Summary
protected  Class _class
           
protected  ITypeDescription _iTypeDescription
           
protected  TypeClass _typeClass
           
protected  String _typeName
           
static Type ANY
           
static Type BOOLEAN
           
static Type BYTE
           
static Type CHAR
           
static Type DOUBLE
           
static Type FLOAT
           
static Type HYPER
           
static Type LONG
           
static Type SHORT
           
static Type STRING
           
static Type TYPE
           
static Type UNSIGNED_HYPER
           
static Type UNSIGNED_LONG
           
static Type UNSIGNED_SHORT
           
static Type VOID
           
 
Constructor Summary
Type()
          Constructs a new Type which defaults to VOID.
Type(Class zClass)
          Constructs a new Type from the given java.lang.Class.
Type(Class zClass, boolean alternative)
          Constructs a new Type from the given java.lang.Class, handling ambiguous cases.
Type(ITypeDescription typeDescription)
          Constructs a new Type from the given type description.
Type(String typeName)
          Constructs a new Type with the given type name.
Type(String typeName, TypeClass typeClass)
          Constructs a new Type with the given type class and type name.
Type(TypeClass typeClass)
          Constructs a new Type with the given type class.
 
Method Summary
 boolean equals(Object obj)
           
 TypeClass getTypeClass()
          Gets the type class.
 ITypeDescription getTypeDescription()
          Gives the type description of this type.
 String getTypeName()
          Gets the type name.
 Class getZClass()
          Gets the Java class.
 int hashCode()
           
 boolean isSupertypeOf(Type type)
          Determines whether this UNO type is a supertype of another UNO type.
 void setTypeDescription(ITypeDescription typeDescription)
          Sets the type description for this type.
 String toString()
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

VOID

public static final Type VOID

CHAR

public static final Type CHAR

BOOLEAN

public static final Type BOOLEAN

BYTE

public static final Type BYTE

SHORT

public static final Type SHORT

UNSIGNED_SHORT

public static final Type UNSIGNED_SHORT

LONG

public static final Type LONG

UNSIGNED_LONG

public static final Type UNSIGNED_LONG

HYPER

public static final Type HYPER

UNSIGNED_HYPER

public static final Type UNSIGNED_HYPER

FLOAT

public static final Type FLOAT

DOUBLE

public static final Type DOUBLE

STRING

public static final Type STRING

TYPE

public static final Type TYPE

ANY

public static final Type ANY

_typeClass

protected TypeClass _typeClass

_typeName

protected String _typeName

_class

protected Class _class

_iTypeDescription

protected ITypeDescription _iTypeDescription
Constructor Detail

Type

public Type()
Constructs a new Type which defaults to VOID.

Type

public Type(String typeName,
            TypeClass typeClass)
Constructs a new Type with the given type class and type name.

Parameters:
typeName - the type name. Must not be null.
typeClass - the type class. Must not be null, and must match the typeName (for example, it is illegal to combine a typeName of "void" with a typeClass of BOOLEAN).

Type

public Type(Class zClass)
Constructs a new Type from the given java.lang.Class.

This is equivalent to Type(zClass, false).

Parameters:
zClass - the Java class of this type. Must not be null.

Type

public Type(Class zClass,
            boolean alternative)
Constructs a new Type from the given java.lang.Class, handling ambiguous cases.

In certain cases, one Java class corresponds to two UNO types (e.g., the Java class short[].class corresponds to both a sequence of SHORT and a sequence of UNSIGNED SHORT in UNO). In such ambiguous cases, the parameter alternative controls which UNO type is chosen:

  • If the Java type is (an array type with element type) short or java.lang.Short: If alternative is false, the chosen UNO type is (a sequence type with element type) SHORT. If alternative is true, the chosen UNO type is (a sequence type with element type) UNSIGNED SHORT.
  • If the Java type is (an array type with element type) int or java.lang.Integer: If alternative is false, the chosen UNO type is (a sequence type with element type) LONG. If alternative is true, the chosen UNO type is (a sequence type with element type) UNSIGNED LONG.
  • If the Java type is (an array type with element type) long or java.lang.Long: If alternative is false, the chosen UNO type is (a sequence type with element type) HYPER. If alternative is true, the chosen UNO type is (a sequence type with element type) UNSIGNED HYPER.
  • If the Java type is (an array type with element type) java.lang.Object: If alternative is false, the chosen UNO type is (a sequence type with element type) ANY. If alternative is true, the chosen UNO type is (a sequence type with element type) com.sun.star.uno.XInterface.

In all other cases, the value of alternative is ignored.

This constructor cannot be used to create Type instances that represent (sequences of) instantiated polymorphic struct types.

Parameters:
zClass - the Java class of this type; must not be null
alternative - controls which UNO type to choose in case of ambiguities
Since:
UDK 3.2.0

Type

public Type(ITypeDescription typeDescription)
Constructs a new Type from the given type description.

Parameters:
typeDescription - a type description. Must not be null.

Type

public Type(String typeName)
Constructs a new Type with the given type name.

Parameters:
typeName - the name of this type; must not be null.

Type

public Type(TypeClass typeClass)
Constructs a new Type with the given type class.

Parameters:
typeClass - the type class of this type; must not be null. Only type classes for simple types are allowed here.
Throws:
IllegalArgumentException - if the given typeClass is not simple (for example, a struct or an interface type). This constructor could not find out the type name in such a case.
Method Detail

getTypeClass

public TypeClass getTypeClass()
Gets the type class.

Returns:
the type class. Will never be null, but might be UNKNOWN.

getTypeName

public String getTypeName()
Gets the type name.

Returns:
the type name; will never be null

getZClass

public Class getZClass()
Gets the Java class.

Returns:
the type name; may be null in extreme situations (inconsistent TypeClass, error loading a class)

getTypeDescription

public ITypeDescription getTypeDescription()
Gives the type description of this type.

Returns:
the type description; may be null

setTypeDescription

public void setTypeDescription(ITypeDescription typeDescription)
Sets the type description for this type.

Parameters:
typeDescription - the type description

isSupertypeOf

public boolean isSupertypeOf(Type type)
Determines whether this UNO type is a supertype of another UNO type. UNO only defines the following supertype relations: (1) A struct type t1 is a supertype of a struct type t2, if either t1 and t2 are the same, or t1 is a direct or indirect parent of t2. (2) An exception type t1 is a supertype of an exception type t2, if either t1 and t2 are the same, or t1 is a direct or indirect parent of t2. (3) An interface type t1 is a supertype of an interface type t2, if either t1 and t2 are the same, or t1 is a direct or indirect parent of t2. Following the conventions of the Java UNO language binding, com.sun.star.uno.Exception is not considered a supertype of com.sun.star.uno.RuntimeException or any exception type derived from com.sun.star.uno.RuntimeException.

Parameters:
type - some Type
Returns:
true if this type is a supertype of the given type
Since:
UDK 3.2.0

equals

public boolean equals(Object obj)
Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

toString

public String toString()
Overrides:
toString in class Object
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