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## org.w3c.dom.ls
Interface DOMInputSource

public interface DOMInputSource

DOM Level 3 WD Experimental: The DOM Level 3 specification is at the stage of Working Draft, which represents work in progress and thus may be updated, replaced, or obsoleted by other documents at any time. This interface represents a single input source for an XML entity.

This interface allows an application to encapsulate information about an input source in a single object, which may include a public identifier, a system identifier, a byte stream (possibly with a specified encoding), and/or a character stream.

The exact definitions of a byte stream and a character stream are binding dependent.

There are two places that the application will deliver this input source to the parser: as the argument to the `parse` method, or as the return value of the `DOMEntityResolver.resolveEntity` method.

Note: There are at least three places where DOMInputSource is passed to the parser (parseWithContext).

The `DOMBuilder` will use the `DOMInputSource` object to determine how to read XML input. If there is a character stream available, the parser will read that stream directly; if not, the parser will use a byte stream, if available; if neither a character stream nor a byte stream is available, the parser will attempt to open a URI connection to the resource identified by the system identifier.

A `DOMInputSource` object belongs to the application: the parser shall never modify it in any way (it may modify a copy if necessary).

Note: Even though all attributes in this interface are writable the DOM implementation is expected to never mutate a DOMInputSource.

See also the Document Object Model (DOM) Level 3 Load and Save Specification.

Method Summary
`java.lang.String` | `getBaseURI()` The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving relative URIs to absolute URIs.
`java.io.InputStream` | `getByteStream()` An attribute of a language-binding dependent type that represents a stream of bytes.
`java.io.Reader` | `getCharacterStream()` An attribute of a language-binding dependent type that represents a stream of 16-bit units.
`java.lang.String` | `getEncoding()` The character encoding, if known.
`java.lang.String` | `getPublicId()` The public identifier for this input source.
`java.lang.String` | `getStringData()` A string attribute that represents a sequence of 16 bit units (utf-16 encoded characters).
`java.lang.String` | `getSystemId()` The system identifier, a URI reference [IETF RFC 2396], for this input source.
`void` | `setBaseURI(java.lang.String baseURI)` The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving relative URIs to absolute URIs.
`void` | `setByteStream(java.io.InputStream byteStream)` An attribute of a language-binding dependent type that represents a stream of bytes.
`void` | `setCharacterStream(java.io.Reader characterStream)` An attribute of a language-binding dependent type that represents a stream of 16-bit units.
`void` | `setEncoding(java.lang.String encoding)` The character encoding, if known.
`void` | `setPublicId(java.lang.String publicId)` The public identifier for this input source.
`void` | `setStringData(java.lang.String stringData)` A string attribute that represents a sequence of 16 bit units (utf-16 encoded characters).
`void` | `setSystemId(java.lang.String systemId)` The system identifier, a URI reference [IETF RFC 2396], for this input source.

Method Detail

### getByteStream

    public java.io.InputStream getByteStream()

  An attribute of a language-binding dependent type that represents a stream of bytes.
  The parser will ignore this if there is also a character stream specified, but it will use a byte stream in preference to opening a URI connection itself.
  If the application knows the character encoding of the byte stream, it should set the encoding attribute. Setting the encoding in this way will override any encoding specified in the XML declaration itself.

### setByteStream

    public void setByteStream(java.io.InputStream byteStream)

  An attribute of a language-binding dependent type that represents a stream of bytes.
  The parser will ignore this if there is also a character stream specified, but it will use a byte stream in preference to opening a URI connection itself.
  If the application knows the character encoding of the byte stream, it should set the encoding attribute. Setting the encoding in this way will override any encoding specified in the XML declaration itself.

### getCharacterStream

    public java.io.Reader getCharacterStream()

  An attribute of a language-binding dependent type that represents a stream of 16-bit units. Application must encode the stream using UTF-16 (defined in [Unicode 2.0] and Amendment 1 of [ISO/IEC 10646]).
  If a character stream is specified, the parser will ignore any byte stream and will not attempt to open a URI connection to the system identifier.

### setCharacterStream

    public void setCharacterStream(java.io.Reader characterStream)

  An attribute of a language-binding dependent type that represents a stream of 16-bit units. Application must encode the stream using UTF-16 (defined in [Unicode 2.0] and Amendment 1 of [ISO/IEC 10646]).
  If a character stream is specified, the parser will ignore any byte stream and will not attempt to open a URI connection to the system identifier.

### getStringData

    public java.lang.String getStringData()

  A string attribute that represents a sequence of 16 bit units (utf-16 encoded characters).
  If string data is available in the input source, the parser will ignore the character stream and the byte stream and will not attempt to open a URI connection to the system identifier.

### setStringData

    public void setStringData(java.lang.String stringData)

  A string attribute that represents a sequence of 16 bit units (utf-16 encoded characters).
  If string data is available in the input source, the parser will ignore the character stream and the byte stream and will not attempt to open a URI connection to the system identifier.

### getEncoding

    public java.lang.String getEncoding()

  The character encoding, if known. The encoding must be a string acceptable for an XML encoding declaration ([XML 1.0] section 4.3.3 "Character Encoding in Entities").
  This attribute has no effect when the application provides a character stream. For other sources of input, an encoding specified by means of this attribute will override any encoding specified in the XML declaration or the Text declaration, or an encoding obtained from a higher level protocol, such as HTTP [IETF RFC 2616].

### setEncoding

    public void setEncoding(java.lang.String encoding)

  The character encoding, if known. The encoding must be a string acceptable for an XML encoding declaration ([XML 1.0] section 4.3.3 "Character Encoding in Entities").
  This attribute has no effect when the application provides a character stream. For other sources of input, an encoding specified by means of this attribute will override any encoding specified in the XML declaration or the Text declaration, or an encoding obtained from a higher level protocol, such as HTTP [IETF RFC 2616].

### getPublicId

    public java.lang.String getPublicId()

  The public identifier for this input source. The public identifier is always optional: if the application writer includes one, it will be provided as part of the location information.

### setPublicId

    public void setPublicId(java.lang.String publicId)

  The public identifier for this input source. The public identifier is always optional: if the application writer includes one, it will be provided as part of the location information.

### getSystemId

    public java.lang.String getSystemId()

  The system identifier, a URI reference [IETF RFC 2396], for this input source. The system identifier is optional if there is a byte stream or a character stream, but it is still useful to provide one, since the application can use it to resolve relative URIs and can include it in error messages and warnings (the parser will attempt to fetch the ressource identifier by the URI reference only if there is no byte stream or character stream specified).
  If the application knows the character encoding of the object pointed to by the system identifier, it can register the encoding by setting the encoding attribute.
  If the system ID is a relative URI reference (see section 5 in [IETF RFC 2396]), the behavior is implementation dependent.

### setSystemId

    public void setSystemId(java.lang.String systemId)

  The system identifier, a URI reference [IETF RFC 2396], for this input source. The system identifier is optional if there is a byte stream or a character stream, but it is still useful to provide one, since the application can use it to resolve relative URIs and can include it in error messages and warnings (the parser will attempt to fetch the ressource identifier by the URI reference only if there is no byte stream or character stream specified).
  If the application knows the character encoding of the object pointed to by the system identifier, it can register the encoding by setting the encoding attribute.
  If the system ID is a relative URI reference (see section 5 in [IETF RFC 2396]), the behavior is implementation dependent.

### getBaseURI

    public java.lang.String getBaseURI()

  The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving relative URIs to absolute URIs. If the baseURI is itself a relative URI, the behavior is implementation dependent.

### setBaseURI

    public void setBaseURI(java.lang.String baseURI)

  The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving relative URIs to absolute URIs. If the baseURI is itself a relative URI, the behavior is implementation dependent.

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