org.springframework.beans.factory.config

## Class MapFactoryBean

- java.lang.Object
- - org.springframework.beans.factory.config.AbstractFactoryBean<Map>
  - - org.springframework.beans.factory.config.MapFactoryBean

- All Implemented Interfaces:
    Aware, BeanClassLoaderAware, BeanFactoryAware, DisposableBean, FactoryBean<Map>, InitializingBean

      public class MapFactoryBean
      extends AbstractFactoryBean<Map>

  Simple factory for shared Map instances. Allows for central setup of Maps via the "map" element in XML bean definitions.
  Since:
    09.12.2003
  Author:
    Juergen Hoeller
  See Also:
    `SetFactoryBean`, `ListFactoryBean`

- - ### Field Summary

    - ### Fields inherited from class org.springframework.beans.factory.config.AbstractFactoryBean

      `logger`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `MapFactoryBean()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected Map` | `createInstance()` Template method that subclasses must override to construct the object returned by this factory.
    `Class<Map>` | `getObjectType()` This abstract method declaration mirrors the method in the FactoryBean interface, for a consistent offering of abstract template methods.
    `void` | `setSourceMap(Map sourceMap)` Set the source Map, typically populated via XML "map" elements.
    `void` | `setTargetMapClass(Class targetMapClass)` Set the class to use for the target Map.

    - ### Methods inherited from class org.springframework.beans.factory.config.AbstractFactoryBean

      `afterPropertiesSet, destroy, destroyInstance, getBeanFactory, getBeanTypeConverter, getEarlySingletonInterfaces, getObject, isSingleton, setBeanClassLoader, setBeanFactory, setSingleton`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### MapFactoryBean

          public MapFactoryBean()

  - ### Method Detail

    - #### setSourceMap

          public void setSourceMap(Map sourceMap)

      Set the source Map, typically populated via XML "map" elements.

    - #### setTargetMapClass

          public void setTargetMapClass(Class targetMapClass)

      Set the class to use for the target Map. Can be populated with a fully qualified class name when defined in a Spring application context.

      Default is a linked HashMap, keeping the registration order.

      See Also:
        `LinkedHashMap`

    - #### getObjectType

          public Class<Map> getObjectType()

      Description copied from class: `AbstractFactoryBean`
      This abstract method declaration mirrors the method in the FactoryBean interface, for a consistent offering of abstract template methods.
      Specified by:
        `getObjectType` in interface `FactoryBean<Map>`
      Specified by:
        `getObjectType` in class `AbstractFactoryBean<Map>`
      Returns:
        the type of object that this FactoryBean creates, or `null` if not known at the time of the call
      See Also:
        `FactoryBean.getObjectType()`

    - #### createInstance

          protected Map createInstance()

      Description copied from class: `AbstractFactoryBean`
      Template method that subclasses must override to construct the object returned by this factory.

      Invoked on initialization of this FactoryBean in case of a singleton; else, on each `AbstractFactoryBean.getObject()` call.

      Specified by:
        `createInstance` in class `AbstractFactoryBean<Map>`
      Returns:
        the object returned by this factory
      See Also:
        `AbstractFactoryBean.getObject()`