Package org.aspectj.org.eclipse.jdt.core

Schnittstelle IMemberValuePair

Alle bekannten Implementierungsklassen:

MemberValuePair

public interface IMemberValuePair

Represents a member-value pair of an annotation. The value is represented by an Object. To get the exact type of this object, use its value kind. If this value is an array, getValue() returns an instance of Object[] and the value kind returns the kind of the elements in this array.

This interface is not intended to be implemented or extended by clients.

Seit:

3.4

Feldübersicht

Felder

Modifizierer und Typ	Feld	Beschreibung
static final int	K_ANNOTATION	Constant indicating that the value kind is an annotation represented by an instance of IAnnotation.
static final int	K_BOOLEAN	Constant indicating that the value kind is a boolean represented by an instance of Boolean.
static final int	K_BYTE	Constant indicating that the value kind is a byte represented by an instance of Byte.
static final int	K_CHAR	Constant indicating that the value kind is a char represented by an instance of Character.
static final int	K_CLASS	Constant indicating that the value kind is a Class represented by the name of the class (i.e. a String.
static final int	K_DOUBLE	Constant indicating that the value kind is a double represented by an instance of Double.
static final int	K_FLOAT	Constant indicating that the value kind is a float represented by an instance of Float.
static final int	K_INT	Constant indicating that the value kind is an int represented by an instance of Integer.
static final int	K_LONG	Constant indicating that the value kind is a long represented by an instance of Long.
static final int	K_QUALIFIED_NAME	Constant indicating that the value is a qualified name represented by a String.
static final int	K_SHORT	Constant indicating that the value kind is a short represented by an instance of Short.
static final int	K_SIMPLE_NAME	Constant indicating that the value is a simple name represented by a String.
static final int	K_STRING	Constant indicating that the value kind is a String represented by the corresponding String.
static final int	K_UNKNOWN	Constant indicating that the value kind is unknown at this stage.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
String	getMemberName()	Returns the member's name of this member-value pair.
Object	getValue()	Returns the value of this member-value pair.
int	getValueKind()	Returns the value kind of this member-value pair.

Felddetails

K_INT

static final int K_INT

Constant indicating that the value kind is an int represented by an instance of Integer.

Siehe auch:

• Konstantenfeldwerte

K_BYTE

static final int K_BYTE

Constant indicating that the value kind is a byte represented by an instance of Byte.

Siehe auch:

• Konstantenfeldwerte

K_SHORT

static final int K_SHORT

Constant indicating that the value kind is a short represented by an instance of Short.

Siehe auch:

• Konstantenfeldwerte

K_CHAR

static final int K_CHAR

Constant indicating that the value kind is a char represented by an instance of Character.

Siehe auch:

• Konstantenfeldwerte

K_FLOAT

static final int K_FLOAT

Constant indicating that the value kind is a float represented by an instance of Float.

Siehe auch:

• Konstantenfeldwerte

K_DOUBLE

static final int K_DOUBLE

Constant indicating that the value kind is a double represented by an instance of Double.

Siehe auch:

• Konstantenfeldwerte

K_LONG

static final int K_LONG

Constant indicating that the value kind is a long represented by an instance of Long.

Siehe auch:

• Konstantenfeldwerte

K_BOOLEAN

static final int K_BOOLEAN

Constant indicating that the value kind is a boolean represented by an instance of Boolean.

Siehe auch:

• Konstantenfeldwerte

K_STRING

static final int K_STRING

Constant indicating that the value kind is a String represented by the corresponding String.

Siehe auch:

• Konstantenfeldwerte

K_ANNOTATION

static final int K_ANNOTATION

Constant indicating that the value kind is an annotation represented by an instance of IAnnotation.

Siehe auch:

• Konstantenfeldwerte

K_CLASS

static final int K_CLASS

Constant indicating that the value kind is a Class represented by the name of the class (i.e. a String. If the member-value pair is coming from a compilation unit, this is either a simple name (e.g. for MyType.class, the name is "MyType"), or a qualified name (e.g. for x.y.MyType.MyNestedType.class, the name is "x.y.MyType.MyNestedType"). If the member-value pair is coming from a class file, this is always a fully qualified name.

Note that one can use IType.resolveType(String) and e.g. IJavaProject.findType(String, String, org.eclipse.core.runtime.IProgressMonitor) to find the corresponding IType.

Siehe auch:

• Konstantenfeldwerte

K_QUALIFIED_NAME

static final int K_QUALIFIED_NAME

Constant indicating that the value is a qualified name represented by a String. The qualified name refers to an enum constant or another compile-time constant if the code is correct (e.g. "MyEnum.FIRST").

Siehe auch:

• Konstantenfeldwerte

K_SIMPLE_NAME

static final int K_SIMPLE_NAME

Constant indicating that the value is a simple name represented by a String. The simple name refers to an enum constant or another compile-time constant if the code is correct (e.g. "FIRST" when there is a static import for "MyEnum.FIRST").

Siehe auch:

• Konstantenfeldwerte

K_UNKNOWN

static final int K_UNKNOWN

Constant indicating that the value kind is unknown at this stage. The value is unknown in the following cases:

• the value is an expression that would need to be further analyzed to determine its kind. For example, in @MyAnnot(1 + 2.3) the kind of the expression "1 + 2.3" is unknown
• the value is an array of size 0, e.g. @MyAnnot({})
• the value is an array that contains at least one expression that would need to be further analyzed to determine its kind. For example, in @MyAnnot({3.4, 1 + 2.3}), the kind of the second element "1 + 2.3" is unknown.
• the value is an array that contains heterogeneous values, e.g. @MyAnnot({1, 2.3, "abc"})

If the value kind is unknown, the returned value is always either null, or an array containing Objects and/or nulls for unknown elements.

Siehe auch:

• Konstantenfeldwerte

Methodendetails

getMemberName

String getMemberName()

Returns the member's name of this member-value pair.

Gibt zurück:

the member's name of this member-value pair.

getValue

Object getValue()

Returns the value of this member-value pair. The type of this value is function of this member-value pair's value kind. It is an instance of Object[] if the value is an array.

If the value kind is K_UNKNOWN and the value is not an array, then the value is null. If the value kind is K_UNKNOWN and the value is an array, then the value is an array containing Objects and/or nulls for unknown elements. See K_UNKNOWN for more details.

Gibt zurück:

the value of this member-value pair.

getValueKind

int getValueKind()

Returns the value kind of this member-value pair. This indicates the instance of the returned value, or the instance of the elements if the value is an array. The value kind is one of the following constants: K_ANNOTATION, K_BOOLEAN, K_BYTE, K_CHAR, K_CLASS, K_DOUBLE, K_FLOAT, K_INT, K_LONG, K_QUALIFIED_NAME, K_SIMPLE_NAME, K_SHORT, K_STRING, K_UNKNOWN.

Gibt zurück:

the value kind of this member-value pair