# Class StreamResult

java.lang.Object
javax.xml.transform.stream.StreamResult

All Implemented Interfaces:
  `Result`

public class StreamResult extends Object implements Result

Acts as an holder for a transformation result, which may be XML, plain Text, HTML, or some other form of markup.

Since:
  1.4

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final String`
  `FEATURE`
  If `TransformerFactory.getFeature(String)` returns true when passed this value as an argument, the Transformer supports Result output of this type.

  ### Fields declared in interface Result

  `PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `StreamResult()`
  Zero-argument default constructor.
  `StreamResult(File f)`
  Construct a StreamResult from a File.
  `StreamResult(OutputStream outputStream)`
  Construct a StreamResult from a byte stream.
  `StreamResult(Writer writer)`
  Construct a StreamResult from a character stream.
  `StreamResult(String systemId)`
  Construct a StreamResult from a URL.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `OutputStream`
  `getOutputStream()`
  Get the byte stream that was set with setOutputStream.
  `String`
  `getSystemId()`
  Get the system identifier that was set with setSystemId.
  `Writer`
  `getWriter()`
  Get the character stream that was set with setWriter.
  `void`
  `setOutputStream(OutputStream outputStream)`
  Set the ByteStream that is to be written to.
  `void`
  `setSystemId(File f)`
  Set the system ID from a `File` reference.
  `void`
  `setSystemId(String systemId)`
  Set the systemID that may be used in association with the byte or character stream, or, if neither is set, use this value as a writeable URI (probably a file name).
  `void`
  `setWriter(Writer writer)`
  Set the writer that is to receive the result.

  ### Methods declared in class Object

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

- ## Field Details

  - ### FEATURE

    public static final String FEATURE
    If `TransformerFactory.getFeature(String)` returns true when passed this value as an argument, the Transformer supports Result output of this type.
    See Also:
      - Constant Field Values

- ## Constructor Details

  - ### StreamResult

    public StreamResult()
    Zero-argument default constructor.

  - ### StreamResult

    public StreamResult(OutputStream outputStream)
    Construct a StreamResult from a byte stream. Normally, a stream should be used rather than a reader, so that the transformer may use instructions contained in the transformation instructions to control the encoding.
    Parameters:
      `outputStream` - A valid OutputStream reference.

  - ### StreamResult

    public StreamResult(Writer writer)
    Construct a StreamResult from a character stream. Normally, a stream should be used rather than a reader, so that the transformer may use instructions contained in the transformation instructions to control the encoding. However, there are times when it is useful to write to a character stream, such as when using a StringWriter.
    Parameters:
      `writer` - A valid Writer reference.

  - ### StreamResult

    public StreamResult(String systemId)
    Construct a StreamResult from a URL.
    Parameters:
      `systemId` - Must be a String that conforms to the URI syntax.

  - ### StreamResult

    public StreamResult(File f)
    Construct a StreamResult from a File.
    Parameters:
      `f` - Must a non-null File reference.

- ## Method Details

  - ### setOutputStream

    public void setOutputStream(OutputStream outputStream)
    Set the ByteStream that is to be written to. Normally, a stream should be used rather than a reader, so that the transformer may use instructions contained in the transformation instructions to control the encoding.
    Parameters:
      `outputStream` - A valid OutputStream reference.

  - ### getOutputStream

    public OutputStream getOutputStream()
    Get the byte stream that was set with setOutputStream.
    Returns:
      The byte stream that was set with setOutputStream, or null if setOutputStream or the ByteStream constructor was not called.

  - ### setWriter

    public void setWriter(Writer writer)
    Set the writer that is to receive the result. Normally, a stream should be used rather than a writer, so that the transformer may use instructions contained in the transformation instructions to control the encoding. However, there are times when it is useful to write to a writer, such as when using a StringWriter.
    Parameters:
      `writer` - A valid Writer reference.

  - ### getWriter

    public Writer getWriter()
    Get the character stream that was set with setWriter.
    Returns:
      The character stream that was set with setWriter, or null if setWriter or the Writer constructor was not called.

  - ### setSystemId

    public void setSystemId(String systemId)
    Set the systemID that may be used in association with the byte or character stream, or, if neither is set, use this value as a writeable URI (probably a file name).
    Specified by:
      `setSystemId` in interface `Result`
    Parameters:
      `systemId` - The system identifier as a URI string.

  - ### setSystemId

    public void setSystemId(File f)

    Set the system ID from a `File` reference.

    Parameters:
      `f` - Must a non-null File reference.

  - ### getSystemId

    public String getSystemId()
    Get the system identifier that was set with setSystemId.
    Specified by:
      `getSystemId` in interface `Result`
    Returns:
      The system identifier that was set with setSystemId, or null if setSystemId was not called.