# Uses of Interface
org.apache.tiles.request.attribute.AttributeExtractor

Packages that use AttributeExtractor
Package
Description
org.apache.tiles.request.collection
Special collections and maps for attributes (like HTTP request or session attributes).
org.apache.tiles.request.freemarker.extractor
Extractors to get information from Freemarker objects.
org.apache.tiles.request.jsp.extractor
Extractors to get scopes from `PageContext`.
org.apache.tiles.request.servlet.extractor
Extractors to get attributes and other info from servlet requests and contexts.
org.apache.tiles.request.velocity.extractor
Extractors to get info about Velocity-specific objects.

- ## Uses of AttributeExtractor in org.apache.tiles.request.collection

  Constructors in org.apache.tiles.request.collection with parameters of type AttributeExtractor
  Modifier
  Constructor
  Description
  ``
  `ScopeMap(AttributeExtractor context)`
  Constructor.

- ## Uses of AttributeExtractor in org.apache.tiles.request.freemarker.extractor

  Classes in org.apache.tiles.request.freemarker.extractor that implement AttributeExtractor
  Modifier and Type
  Class
  Description
  `class`
  `EnvironmentScopeExtractor`
  Extract attributes from `Environment` objects as a scope.

- ## Uses of AttributeExtractor in org.apache.tiles.request.jsp.extractor

  Classes in org.apache.tiles.request.jsp.extractor that implement AttributeExtractor
  Modifier and Type
  Class
  Description
  `class`
  `ScopeExtractor`
  Extracts attributes from a numbered scope from `JspContext`.
  `class`
  `SessionScopeExtractor`
  Extracts attributes from session scope from `PageContext`.

- ## Uses of AttributeExtractor in org.apache.tiles.request.servlet.extractor

  Classes in org.apache.tiles.request.servlet.extractor that implement AttributeExtractor
  Modifier and Type
  Class
  Description
  `class`
  `ApplicationScopeExtractor`
  Extract attributes from application scope.
  `class`
  `RequestScopeExtractor`
  Extracts attributes from request scope.
  `class`
  `SessionScopeExtractor`
  Extract attributes from session scope.

- ## Uses of AttributeExtractor in org.apache.tiles.request.velocity.extractor

  Classes in org.apache.tiles.request.velocity.extractor that implement AttributeExtractor
  Modifier and Type
  Class
  Description
  `class`
  `VelocityScopeExtractor`
  Extracts attributes from Velocity context..