org.springframework.web.context.support
Class ServletContextPropertyPlaceholderConfigurer

java.lang.Object
  org.springframework.beans.factory.config.PropertyResourceConfigurer
      org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
          org.springframework.web.context.support.ServletContextPropertyPlaceholderConfigurer

All Implemented Interfaces:

BeanFactoryAware, BeanFactoryPostProcessor, BeanNameAware, Ordered, ServletContextAware

public class ServletContextPropertyPlaceholderConfigurer

extends PropertyPlaceholderConfigurer

implements ServletContextAware

Subclass of PropertyPlaceholderConfigurer that falls back to ServletContext init parameters (that is, web.xml context-param entries) if a placeholder could not be resolved against the provided properties.

Can be combined with "locations" and/or "properties" values for fallback to web.xml context-params. Alternatively, can be defined without properties locations and values, to resolve all placeholders as web.xml context-params (or JVM system properties).

Since:

1.1.4

Author:

Juergen Hoeller

See Also:

PropertyResourceConfigurer.setLocations(org.springframework.core.io.Resource[]), PropertyResourceConfigurer.setProperties(java.util.Properties), PropertyPlaceholderConfigurer.setSystemPropertiesModeName(java.lang.String)

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.beans.factory.config.PropertyResourceConfigurer

logger

Constructor Summary

ServletContextPropertyPlaceholderConfigurer()

Method Summary

protected String	resolvePlaceholder(String placeholder, Properties props) Resolve the given placeholder using the given properties.
void	setServletContext(ServletContext servletContext) Set the ServletContext that this object runs in.

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

parseBeanDefinition, parseGenericArgumentValues, parseIndexedArgumentValues, parseList, parseMap, parsePropertyValues, parseSet, parseString, parseString, parseValue, processProperties, resolvePlaceholder, setBeanFactory, setBeanName, setIgnoreUnresolvablePlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setSystemPropertiesMode, setSystemPropertiesModeName

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

convertProperties, convertPropertyValue, getOrder, postProcessBeanFactory, setFileEncoding, setIgnoreResourceNotFound, setLocation, setLocations, setOrder, setProperties, setPropertiesPersister

Methods inherited from class java.lang.Object

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

Constructor Detail

ServletContextPropertyPlaceholderConfigurer

public ServletContextPropertyPlaceholderConfigurer()

Method Detail

setServletContext

public void setServletContext(ServletContext servletContext)

Description copied from interface: ServletContextAware

Set the ServletContext that this object runs in.

Invoked after population of normal bean properties but before an init callback like InitializingBean's afterPropertiesSet or a custom init-method. Invoked after ApplicationContextAware's setApplicationContext.

Specified by:

setServletContext in interface ServletContextAware

Parameters:

servletContext - ServletContext object to be used by this object

resolvePlaceholder

protected String resolvePlaceholder(String placeholder,
                                    Properties props)

Description copied from class: PropertyPlaceholderConfigurer

Resolve the given placeholder using the given properties. Default implementation simply checks for a corresponding property key.

Subclasses can override this for customized placeholder-to-key mappings or custom resolution strategies, possibly just using the given properties as fallback.

Note that system properties will still be checked before respectively after this method is invoked, according to the system properties mode.

Overrides:

resolvePlaceholder in class PropertyPlaceholderConfigurer

Parameters:

placeholder - the placeholder to resolve

props - the merged properties of this configurer

Returns:

the resolved value, of null if none

See Also:

PropertyPlaceholderConfigurer.setSystemPropertiesMode(int)