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/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom.ls;
/**
* This interface represents an input source for data.
* <p> 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.
* <p> The exact definitions of a byte stream and a character stream are
* binding dependent.
* <p> 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 <code>DOMImplementationLS.createLSInput()</code>
* to create objects that implement this interface.
* <p> The <code>LSParser</code> will use the <code>LSInput</code> object to
* determine how to read data. The <code>LSParser</code> will look at the
* different inputs specified in the <code>LSInput</code> 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:
* <ol>
* <li> <code>LSInput.characterStream</code>
* </li>
* <li>
* <code>LSInput.byteStream</code>
* </li>
* <li> <code>LSInput.stringData</code>
* </li>
* <li>
* <code>LSInput.systemId</code>
* </li>
* <li> <code>LSInput.publicId</code>
* </li>
* </ol>
* <p> If all inputs are null, the <code>LSParser</code> will report a
* <code>DOMError</code> with its <code>DOMError.type</code> set to
* <code>"no-input-specified"</code> and its <code>DOMError.severity</code>
* set to <code>DOMError.SEVERITY_FATAL_ERROR</code>.
* <p> <code>LSInput</code> objects belong to the application. The DOM
* implementation will never modify them (though it may make copies and
* modify the copies, if necessary).
* <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407'>Document Object Model (DOM) Level 3 Load
and Save Specification</a>.
*/
public interface LSInput {
/**
* 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.
*/
public java.io.Reader getCharacterStream();
/**
* 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.
*/
public void setCharacterStream(java.io.Reader characterStream);
/**
* An attribute of a language and binding dependent type that represents
* a stream of bytes.
* <br> 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.
*/
public java.io.InputStream getByteStream();
/**
* An attribute of a language and binding dependent type that represents
* a stream of bytes.
* <br> 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.
*/
public void setByteStream(java.io.InputStream byteStream);
/**
* 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
* <code>stringData</code>. If an XML declaration is present, the value
* of the encoding attribute will be ignored.
*/
public String getStringData();
/**
* 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
* <code>stringData</code>. If an XML declaration is present, the value
* of the encoding attribute will be ignored.
*/
public void setStringData(String stringData);
/**
* The system identifier, a URI reference [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>], 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.)
* <br> If the application knows the character encoding of the object
* pointed to by the system identifier, it can set the encoding using
* the <code>encoding</code> attribute.
* <br> If the specified system ID is a relative URI reference (see
* section 5 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]), the DOM
* implementation will attempt to resolve the relative URI with the
* <code>baseURI</code> as the base, if that fails, the behavior is
* implementation dependent.
*/
public String getSystemId();
/**
* The system identifier, a URI reference [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>], 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.)
* <br> If the application knows the character encoding of the object
* pointed to by the system identifier, it can set the encoding using
* the <code>encoding</code> attribute.
* <br> If the specified system ID is a relative URI reference (see
* section 5 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]), the DOM
* implementation will attempt to resolve the relative URI with the
* <code>baseURI</code> as the base, if that fails, the behavior is
* implementation dependent.
*/
public void setSystemId(String systemId);
/**
* 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.
*/
public String getPublicId();
/**
* 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.
*/
public void setPublicId(String publicId);
/**
* The base URI to be used (see section 5.1.4 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]) for
* resolving a relative <code>systemId</code> to an absolute URI.
* <br> If, when used, the base URI is itself a relative URI, an empty
* string, or null, the behavior is implementation dependent.
*/
public String getBaseURI();
/**
* The base URI to be used (see section 5.1.4 in [<a href='http://www.ietf.org/rfc/rfc2396.txt'>IETF RFC 2396</a>]) for
* resolving a relative <code>systemId</code> to an absolute URI.
* <br> If, when used, the base URI is itself a relative URI, an empty
* string, or null, the behavior is implementation dependent.
*/
public void setBaseURI(String baseURI);
/**
* The character encoding, if known. The encoding must be a string
* acceptable for an XML encoding declaration ([<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>] section
* 4.3.3 "Character Encoding in Entities").
* <br> 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 [<a href='http://www.ietf.org/rfc/rfc2616.txt'>IETF RFC 2616</a>].
*/
public String getEncoding();
/**
* The character encoding, if known. The encoding must be a string
* acceptable for an XML encoding declaration ([<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>] section
* 4.3.3 "Character Encoding in Entities").
* <br> 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 [<a href='http://www.ietf.org/rfc/rfc2616.txt'>IETF RFC 2616</a>].
*/
public void setEncoding(String encoding);
/**
* If set to true, assume that the input is certified (see section 2.13
* in [<a href='http://www.w3.org/TR/2004/REC-xml11-20040204/'>XML 1.1</a>]) when
* parsing [<a href='http://www.w3.org/TR/2004/REC-xml11-20040204/'>XML 1.1</a>].
*/
public boolean getCertifiedText();
/**
* If set to true, assume that the input is certified (see section 2.13
* in [<a href='http://www.w3.org/TR/2004/REC-xml11-20040204/'>XML 1.1</a>]) when
* parsing [<a href='http://www.w3.org/TR/2004/REC-xml11-20040204/'>XML 1.1</a>].
*/
public void setCertifiedText(boolean certifiedText);
}
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