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Java Source Code / Java Documentation » 6.0 JDK Core » w3c » org.w3c.dom.ls 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.w3c.dom.ls.LSInput

LSInput
public interface LSInput (Code)
This interface represents an input source for data.

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), a base URI, and/or a character stream.

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

The application is expected to provide objects that implement this interface whenever such objects are needed. The application can either provide its own objects that implement this interface, or it can use the generic factory method DOMImplementationLS.createLSInput() to create objects that implement this interface.

The LSParser will use the LSInput object to determine how to read data. The LSParser will look at the different inputs specified in the LSInput in the following order to know which one to read from, the first one that is not null and not an empty string will be used:

  1. LSInput.characterStream
  2. LSInput.byteStream
  3. LSInput.stringData
  4. LSInput.systemId
  5. LSInput.publicId

If all inputs are null, the LSParser will report a DOMError with its DOMError.type set to "no-input-specified" and its DOMError.severity set to DOMError.SEVERITY_FATAL_ERROR.

LSInput objects belong to the application. The DOM implementation will never modify them (though it may make copies and modify the copies, if necessary).

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





Method Summary
public  StringgetBaseURI()
     The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving a relative systemId to an absolute URI.
public  java.io.InputStreamgetByteStream()
     An attribute of a language and binding dependent type that represents a stream of bytes.
public  booleangetCertifiedText()
     If set to true, assume that the input is certified (see section 2.13 in [XML 1.1]) when parsing [XML 1.1].
public  java.io.ReadergetCharacterStream()
     An attribute of a language and binding dependent type that represents a stream of 16-bit units.
public  StringgetEncoding()
     The character encoding, if known.
public  StringgetPublicId()
     The public identifier for this input source.
public  StringgetStringData()
     String data to parse.
public  StringgetSystemId()
     The system identifier, a URI reference [IETF RFC 2396], for this input source.
public  voidsetBaseURI(String baseURI)
     The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving a relative systemId to an absolute URI.
public  voidsetByteStream(java.io.InputStream byteStream)
     An attribute of a language and binding dependent type that represents a stream of bytes.
public  voidsetCertifiedText(boolean certifiedText)
     If set to true, assume that the input is certified (see section 2.13 in [XML 1.1]) when parsing [XML 1.1].
public  voidsetCharacterStream(java.io.Reader characterStream)
     An attribute of a language and binding dependent type that represents a stream of 16-bit units.
public  voidsetEncoding(String encoding)
     The character encoding, if known.
public  voidsetPublicId(String publicId)
     The public identifier for this input source.
public  voidsetStringData(String stringData)
     String data to parse.
public  voidsetSystemId(String systemId)
     The system identifier, a URI reference [IETF RFC 2396], for this input source.



Method Detail
getBaseURI
public String getBaseURI()(Code)
The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving a relative systemId to an absolute URI.
If, when used, the base URI is itself a relative URI, an empty string, or null, the behavior is implementation dependent.



getByteStream
public java.io.InputStream getByteStream()(Code)
An attribute of a language and binding dependent type that represents a stream of bytes.
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 an XML declaration in the data.



getCertifiedText
public boolean getCertifiedText()(Code)
If set to true, assume that the input is certified (see section 2.13 in [XML 1.1]) when parsing [XML 1.1].



getCharacterStream
public java.io.Reader getCharacterStream()(Code)
An attribute of a language and binding dependent type that represents a stream of 16-bit units. The application must encode the stream using UTF-16 (defined in [Unicode] and in [ISO/IEC 10646]). It is not a requirement to have an XML declaration when using character streams. If an XML declaration is present, the value of the encoding attribute will be ignored.



getEncoding
public String getEncoding()(Code)
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 or string data. 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 String getPublicId()(Code)
The public identifier for this input source. This may be mapped to an input source using an implementation dependent mechanism (such as catalogues or other mappings). The public identifier, if specified, may also be reported as part of the location information when errors are reported.



getStringData
public String getStringData()(Code)
String data to parse. If provided, this will always be treated as a sequence of 16-bit units (UTF-16 encoded characters). It is not a requirement to have an XML declaration when using stringData. If an XML declaration is present, the value of the encoding attribute will be ignored.



getSystemId
public String getSystemId()(Code)
The system identifier, a URI reference [IETF RFC 2396], for this input source. The system identifier is optional if there is a byte stream, a character stream, or string data. It is still useful to provide one, since the application will use it to resolve any relative URIs and can include it in error messages and warnings. (The LSParser will only attempt to fetch the resource identified by the URI reference if there is no other input available in the input source.)
If the application knows the character encoding of the object pointed to by the system identifier, it can set the encoding using the encoding attribute.
If the specified system ID is a relative URI reference (see section 5 in [IETF RFC 2396]), the DOM implementation will attempt to resolve the relative URI with the baseURI as the base, if that fails, the behavior is implementation dependent.



setBaseURI
public void setBaseURI(String baseURI)(Code)
The base URI to be used (see section 5.1.4 in [IETF RFC 2396]) for resolving a relative systemId to an absolute URI.
If, when used, the base URI is itself a relative URI, an empty string, or null, the behavior is implementation dependent.



setByteStream
public void setByteStream(java.io.InputStream byteStream)(Code)
An attribute of a language and binding dependent type that represents a stream of bytes.
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 an XML declaration in the data.



setCertifiedText
public void setCertifiedText(boolean certifiedText)(Code)
If set to true, assume that the input is certified (see section 2.13 in [XML 1.1]) when parsing [XML 1.1].



setCharacterStream
public void setCharacterStream(java.io.Reader characterStream)(Code)
An attribute of a language and binding dependent type that represents a stream of 16-bit units. The application must encode the stream using UTF-16 (defined in [Unicode] and in [ISO/IEC 10646]). It is not a requirement to have an XML declaration when using character streams. If an XML declaration is present, the value of the encoding attribute will be ignored.



setEncoding
public void setEncoding(String encoding)(Code)
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 or string data. 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].



setPublicId
public void setPublicId(String publicId)(Code)
The public identifier for this input source. This may be mapped to an input source using an implementation dependent mechanism (such as catalogues or other mappings). The public identifier, if specified, may also be reported as part of the location information when errors are reported.



setStringData
public void setStringData(String stringData)(Code)
String data to parse. If provided, this will always be treated as a sequence of 16-bit units (UTF-16 encoded characters). It is not a requirement to have an XML declaration when using stringData. If an XML declaration is present, the value of the encoding attribute will be ignored.



setSystemId
public void setSystemId(String systemId)(Code)
The system identifier, a URI reference [IETF RFC 2396], for this input source. The system identifier is optional if there is a byte stream, a character stream, or string data. It is still useful to provide one, since the application will use it to resolve any relative URIs and can include it in error messages and warnings. (The LSParser will only attempt to fetch the resource identified by the URI reference if there is no other input available in the input source.)
If the application knows the character encoding of the object pointed to by the system identifier, it can set the encoding using the encoding attribute.
If the specified system ID is a relative URI reference (see section 5 in [IETF RFC 2396]), the DOM implementation will attempt to resolve the relative URI with the baseURI as the base, if that fails, the behavior is implementation dependent.



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