org.apache.felix.scr.annotations
Enum ReferenceCardinality

java.lang.Object
  java.lang.Enum<ReferenceCardinality>
      org.apache.felix.scr.annotations.ReferenceCardinality

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ReferenceCardinality>

public enum ReferenceCardinality
extends java.lang.Enum<ReferenceCardinality>

Options for Reference.cardinality() property.

Enum Constant Summary

MANDATORY_MULTIPLE
Mandatory, multiple reference: At least one service must be available for the reference to be satisified.

MANDATORY_UNARY
Mandatory, unary reference: At least one service must be available for the reference to be satisfied.

OPTIONAL_MULTIPLE
Optional, multiple reference: No service required to be available for the refernce to be satisfied.

OPTIONAL_UNARY
Optional, unary reference: No service required to be available for the refernce to be satisfied.

Method Summary

java.lang.String	getCardinalityString()
static ReferenceCardinality	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ReferenceCardinality[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

OPTIONAL_UNARY

public static final ReferenceCardinality OPTIONAL_UNARY

Optional, unary reference: No service required to be available for the refernce to be satisfied. Only a single service is available through this reference.

MANDATORY_UNARY

public static final ReferenceCardinality MANDATORY_UNARY

Mandatory, unary reference: At least one service must be available for the reference to be satisfied. Only a single service is available through this reference.

OPTIONAL_MULTIPLE

public static final ReferenceCardinality OPTIONAL_MULTIPLE

Optional, multiple reference: No service required to be available for the refernce to be satisfied. All matching services are available through this reference.

MANDATORY_MULTIPLE

public static final ReferenceCardinality MANDATORY_MULTIPLE

Mandatory, multiple reference: At least one service must be available for the reference to be satisified. All matching services are available through this reference.

Method Detail

values

public static ReferenceCardinality[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ReferenceCardinality c : ReferenceCardinality.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ReferenceCardinality valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getCardinalityString

public java.lang.String getCardinalityString()

Returns:

String representation of cardinality