PreferencesPlaceholderConfigurer (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.beans.factory.config
Class PreferencesPlaceholderConfigurer

java.lang.Object
  org.springframework.core.io.support.PropertiesLoaderSupport
      org.springframework.beans.factory.config.PropertyResourceConfigurer
          org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
              org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer

All Implemented Interfaces:: BeanFactoryAware, BeanNameAware, BeanFactoryPostProcessor, InitializingBean, Ordered

public class PreferencesPlaceholderConfigurer
extends PropertyPlaceholderConfigurer
implements InitializingBean
extends PropertyPlaceholderConfigurer
implements InitializingBean

Subclass of PropertyPlaceholderConfigurer that supports JDK 1.4's Preferences API (java.util.prefs).

Tries to resolve placeholders as keys first in the user preferences, then in the system preferences, then in this configurer's properties. Thus, behaves like PropertyPlaceholderConfigurer if no corresponding preferences defined.

Supports custom paths for the system and user preferences trees. Uses the respective root node if not specified.

Since:: 16.02.2004
Author:: Juergen Hoeller
See Also:: setSystemTreePath(java.lang.String), setUserTreePath(java.lang.String), Preferences

Field Summary

Fields inherited from class org.springframework.beans.factory.config.PropertyPlaceholderConfigurer

DEFAULT_PLACEHOLDER_PREFIX, DEFAULT_PLACEHOLDER_SUFFIX, SYSTEM_PROPERTIES_MODE_FALLBACK, SYSTEM_PROPERTIES_MODE_NEVER, SYSTEM_PROPERTIES_MODE_OVERRIDE

Fields inherited from class org.springframework.core.io.support.PropertiesLoaderSupport

logger, XML_FILE_EXTENSION

Constructor Summary

PreferencesPlaceholderConfigurer()


Method Summary

void afterPropertiesSet()
          This implementation eagerly fetches the Preferences instances for the required system and user tree nodes.

protected String resolvePlaceholder(String placeholder, Properties props)
          This implementation tries to resolve placeholders as keys first in the user preferences, then in the system preferences, then in the passed-in properties.

void setSystemTreePath(String systemTreePath)
          Set the path in the system preferences tree to use for resolving placeholders.

void setUserTreePath(String userTreePath)
          Set the path in the system preferences tree to use for resolving placeholders.

Methods inherited from class org.springframework.beans.factory.config.PropertyPlaceholderConfigurer

parseStringValue, processProperties, resolvePlaceholder, resolveSystemProperty, setBeanFactory, setBeanName, setIgnoreUnresolvablePlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setSearchSystemEnvironment, setSystemPropertiesMode, setSystemPropertiesModeName

Methods inherited from class org.springframework.beans.factory.config.PropertyResourceConfigurer

convertProperties, convertPropertyValue, getOrder, postProcessBeanFactory, setOrder

Methods inherited from class org.springframework.core.io.support.PropertiesLoaderSupport

loadProperties, mergeProperties, setFileEncoding, setIgnoreResourceNotFound, setLocalOverride, setLocation, setLocations, setProperties, setPropertiesArray, setPropertiesPersister

Methods inherited from class java.lang.Object

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

Fields inherited from class org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
`DEFAULT_PLACEHOLDER_PREFIX, DEFAULT_PLACEHOLDER_SUFFIX, SYSTEM_PROPERTIES_MODE_FALLBACK, SYSTEM_PROPERTIES_MODE_NEVER, SYSTEM_PROPERTIES_MODE_OVERRIDE`

Fields inherited from class org.springframework.core.io.support.PropertiesLoaderSupport
`logger, XML_FILE_EXTENSION`

Constructor Summary
`PreferencesPlaceholderConfigurer()`

Method Summary
`void`	`afterPropertiesSet()` This implementation eagerly fetches the Preferences instances for the required system and user tree nodes.
`protected String`	`resolvePlaceholder(String placeholder, Properties props)` This implementation tries to resolve placeholders as keys first in the user preferences, then in the system preferences, then in the passed-in properties.
`void`	`setSystemTreePath(String systemTreePath)` Set the path in the system preferences tree to use for resolving placeholders.
`void`	`setUserTreePath(String userTreePath)` Set the path in the system preferences tree to use for resolving placeholders.

Methods inherited from class org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
`parseStringValue, processProperties, resolvePlaceholder, resolveSystemProperty, setBeanFactory, setBeanName, setIgnoreUnresolvablePlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setSearchSystemEnvironment, setSystemPropertiesMode, setSystemPropertiesModeName`

Methods inherited from class org.springframework.beans.factory.config.PropertyResourceConfigurer
`convertProperties, convertPropertyValue, getOrder, postProcessBeanFactory, setOrder`

Methods inherited from class org.springframework.core.io.support.PropertiesLoaderSupport
`loadProperties, mergeProperties, setFileEncoding, setIgnoreResourceNotFound, setLocalOverride, setLocation, setLocations, setProperties, setPropertiesArray, setPropertiesPersister`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

PreferencesPlaceholderConfigurer

public PreferencesPlaceholderConfigurer()

Method Detail

setSystemTreePath

public void setSystemTreePath(String systemTreePath)

Set the path in the system preferences tree to use for resolving placeholders. Default is the root node.

setUserTreePath

public void setUserTreePath(String userTreePath)