# org.simpleframework.xml.filter
Date: 2013-02-18

## Package org.simpleframework.xml.filter

Interface Summary
Filter: The `Filter` object is used to provide replacement string values for a provided key.

Class Summary
EnvironmentFilter: The `EnvironmentFilter` object is used to provide a filter that will replace the specified values with an environment variable from the OS.
MapFilter: The `MapFilter` object is a filter that can make use of user specified mappings for replacement.
PlatformFilter: The `PlatformFilter` object makes use of all filter types this resolves user specified properties first, followed by system properties, and finally environment variables.
StackFilter: The `StackFilter` object provides a filter that can be given a collection of filters which can be used to resolve a replacement.
SystemFilter: The `SystemFilter` object is used to provide a filter that will replace the specified values with system properties.