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The Spring Framework | |||||||||
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public interface BeanDefinition
A BeanDefinition describes a bean instance, which has property values, constructor argument values, and further information supplied by concrete implementations.
This is just a minimal interface: The main intention is to allow a
BeanFactoryPostProcessor
such as PropertyPlaceholderConfigurer
to introspect and modify property values and other bean metadata.
ConfigurableListableBeanFactory.getBeanDefinition(java.lang.String)
,
RootBeanDefinition
,
ChildBeanDefinition
Field Summary | |
---|---|
static int |
ROLE_APPLICATION
Role hint indicating that a BeanDefinition is a major part
of the application. |
static int |
ROLE_INFRASTRUCTURE
Role hint indicating that a BeanDefinition is providing
an entirely background role and has no relevance to the end-user. |
static int |
ROLE_SUPPORT
Role hint indicating that a BeanDefinition is a supporting
part of some larger configuration, typically an outer
ComponentDefinition . |
static String |
SCOPE_PROTOTYPE
Scope identifier for the standard prototype scope: "prototype". |
static String |
SCOPE_SINGLETON
Scope identifier for the standard singleton scope: "singleton". |
Method Summary | |
---|---|
String |
getBeanClassName()
Return the current bean class name of this bean definition. |
ConstructorArgumentValues |
getConstructorArgumentValues()
Return the constructor argument values for this bean. |
MutablePropertyValues |
getPropertyValues()
Return the property values to be applied to a new instance of the bean. |
String |
getResourceDescription()
Return a description of the resource that this bean definition came from (for the purpose of showing context in case of errors). |
int |
getRole()
Get the role hint for this BeanDefinition . |
String |
getScope()
Return the name of the current target scope for this bean. |
boolean |
isAbstract()
Return whether this bean is "abstract", that is, not meant to be instantiated. |
boolean |
isLazyInit()
Return whether this bean should be lazily initialized, that is, not eagerly instantiated on startup. |
boolean |
isSingleton()
Return whether this a Singleton, with a single, shared instance returned on all calls. |
void |
setBeanClassName(String beanClassName)
Override the bean class name of this bean definition. |
void |
setScope(String scope)
Override the target scope of this bean, specifying a new scope name. |
Methods inherited from interface org.springframework.core.AttributeAccessor |
---|
attributeNames, getAttribute, hasAttribute, removeAttribute, setAttribute |
Methods inherited from interface org.springframework.beans.BeanMetadataElement |
---|
getSource |
Field Detail |
---|
static final String SCOPE_SINGLETON
Note that extended bean factories might support further scopes.
static final String SCOPE_PROTOTYPE
Note that extended bean factories might support further scopes.
static final int ROLE_APPLICATION
BeanDefinition
is a major part
of the application. Typically corresponds to a user-defined bean.
static final int ROLE_SUPPORT
BeanDefinition
is a supporting
part of some larger configuration, typically an outer
ComponentDefinition
.
SUPPORT
beans are considered important enough to be aware
of when looking more closely at a particular
ComponentDefinition
, but
not when looking at the overall configuration of an application.
static final int ROLE_INFRASTRUCTURE
BeanDefinition
is providing
an entirely background role and has no relevance to the end-user. This
hint is used when registering beans that are completely part of the internal
workings of a ComponentDefinition
.
Method Detail |
---|
String getBeanClassName()
Note that this does not have to be the actual class name used at runtime, in case of a child definition overriding/inheriting the class name from its parent. Hence, do not consider this to be the definitive bean type at runtime but rather only use it for parsing purposes at the individual bean definition level.
void setBeanClassName(String beanClassName)
The class name can be modified during bean factory post-processing, typically replacing the original class name with a parsed variant of it.
ConstructorArgumentValues getConstructorArgumentValues()
The returned instance can be modified during bean factory post-processing.
null
)MutablePropertyValues getPropertyValues()
The returned instance can be modified during bean factory post-processing.
null
)String getScope()
void setScope(String scope)
SCOPE_SINGLETON
,
SCOPE_PROTOTYPE
boolean isSingleton()
boolean isAbstract()
boolean isLazyInit()
String getResourceDescription()
int getRole()
BeanDefinition
. The role hint
provides tools with an indication of the importance of a particular
BeanDefinition
.
ROLE_APPLICATION
,
ROLE_INFRASTRUCTURE
,
ROLE_SUPPORT
|
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