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## org.apache.cocoon.producer
Interface Producer

All Superinterfaces:
  Actor, Changeable

All Known Implementing Classes:
  AbstractProducer

public interface Producer
extends Actor, Changeable

This interface must be implemented by the classes that produce documents encapsulating resources. These resource wrappers provide a way to call, execute or otherwise access the data contained or generated by these resources and transform it into data models that can be used by the publishing framework for futher processing.

Version:
  $Revision: 1.4 $ $Date: 2000/02/13 18:29:41 $
Author:
  Stefano Mazzocchi

Method Summary
`org.w3c.dom.Document` | `getDocument(javax.servlet.http.HttpServletRequest request)` This method is responsible to generate a DOM tree that contains the generated data.
`java.lang.String` | `getPath(javax.servlet.http.HttpServletRequest request)` Returns the path where the resource is found, or an empty string if no path can be applied to the resource.
`java.io.Reader` | `getStream(javax.servlet.http.HttpServletRequest request)` This method is responsible to provide an input stream to read the data generated or contained by the resource mapped by this document producer.

Methods inherited from interface org.apache.cocoon.framework.Actor
`init`

Methods inherited from interface org.apache.cocoon.framework.Changeable
`hasChanged`

Method Detail

### getStream

    public java.io.Reader getStream(javax.servlet.http.HttpServletRequest request)
                             throws java.lang.Exception

  This method is responsible to provide an input stream to read the data generated or contained by the resource mapped by this document producer. This stream is not guaranteed to be buffered.

### getDocument

    public org.w3c.dom.Document getDocument(javax.servlet.http.HttpServletRequest request)
                                     throws java.lang.Exception

  This method is responsible to generate a DOM tree that contains the generated data.

### getPath

    public java.lang.String getPath(javax.servlet.http.HttpServletRequest request)

  Returns the path where the resource is found, or an empty string if no path can be applied to the resource. Warning, null values are not valid.

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