Autowire (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.beans.factory.annotation
Enum Autowire

java.lang.Object
  java.lang.Enum<Autowire>
      org.springframework.beans.factory.annotation.Autowire

All Implemented Interfaces:: Serializable, Comparable<Autowire>

public enum Autowire
extends Enum<Autowire>
extends Enum<Autowire>

Enumeration determining autowiring status: that is, whether a bean should have its dependencies automatically injected by the Spring container using setter injection. This is a core concept in Spring DI.

Available for use in annotation-based configurations, such as for the AspectJ AnnotationBeanConfigurer aspect.

Since:: 2.0
Author:: Rod Johnson, Juergen Hoeller
See Also:: Configurable, AutowireCapableBeanFactory

Enum Constant Summary

BY_NAME
          Constant that indicates autowiring bean properties by name.

BY_TYPE
          Constant that indicates autowiring bean properties by type.

INHERITED
          Constant that indicates that autowiring information was not specified.

NO
          Constant that indicates no autowiring at all.

Method Summary

boolean isAutowire()
          Return whether this represents an actual autowiring value.

int value()


static Autowire valueOf(String name)
          Returns the enum constant of this type with the specified name.

static Autowire[] 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 Summary
`BY_NAME` Constant that indicates autowiring bean properties by name.
`BY_TYPE` Constant that indicates autowiring bean properties by type.
`INHERITED` Constant that indicates that autowiring information was not specified.
`NO` Constant that indicates no autowiring at all.

Method Summary
`boolean`	`isAutowire()` Return whether this represents an actual autowiring value.
`int`	`value()`
`static Autowire`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static Autowire[]`	`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

INHERITED

public static final Autowire INHERITED

Constant that indicates that autowiring information was not specified. In some cases it may be necessary to specify autowiring status, but merely confirm that this should be inherited from an enclosing container definition scope.

NO

public static final Autowire NO

Constant that indicates no autowiring at all.

BY_NAME

public static final Autowire BY_NAME

Constant that indicates autowiring bean properties by name.

BY_TYPE

public static final Autowire BY_TYPE

Constant that indicates autowiring bean properties by type.

Method Detail

values

public static Autowire[] 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 (Autowire c : Autowire.values())
    System.out.println(c);

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

valueOf

public static Autowire valueOf(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:: IllegalArgumentException - if this enum type has no constant with the specified name; NullPointerException - if the argument is null

value

public int value()

isAutowire

public boolean isAutowire()

Return whether this represents an actual autowiring value.

Returns:: whether actual autowiring was specified (either BY_NAME or BY_TYPE)