com.ibm.di.parser
Class CBEParser

java.lang.Object
  com.ibm.di.parser.ParserImpl
      com.ibm.di.parser.xml.XMLParser2
          com.ibm.di.parser.CBEParser

All Implemented Interfaces:

ParserInterface, VersionInfoInterface

public class CBEParser
extends XMLParser2

A class that reads and writes CBE objects in XML format.

Field Summary

Fields inherited from class com.ibm.di.parser.xml.XMLParser2

attrsDeclaration, charEncoding, coalescing, currentEntryAsXML, currentEntryAsXMLString, DEFAULT_ENCODING, DUMMY_ROOT_NAME, entryTag, firstWriteStart, indentOutput, nsMap, nsTracker, skipXMLOnReading, skipXMLOnWriting, standaloneRoot, valueTag, wrapUnwrapEntry, xmlVersion, xPath, xPathStr, xsdPath

Fields inherited from class com.ibm.di.parser.ParserImpl

_debug, myConfiguration

Constructor Summary

CBEParser()
Default constructor.

Method Summary

void	closeParser() This method closes the parser's streams
String	getVersion() Version information.
void	initInput() Initializes the Input.
void	initOutput() Initialize and prepare the outputStream and prepare the outputDoc.
Object	querySchema(Object source) This Parser does not support dynamic schema discovery and uses the default Query Schema implementation.
Entry	readEntry() Reads the inputStream and fill the Entry Object that it returns
void	writeEntry(Entry entry) Create/get the CBE object and convert it to XML.

Methods inherited from class com.ibm.di.parser.xml.XMLParser2

getCurrentEntryAsXMLStream, getCurrentEntryAsXMLString, getCurrentEntryPath, getLogger, getSchemaLocationFromXML, initParser

Methods inherited from class com.ibm.di.parser.ParserImpl

debug, debugMode, flush, getClassInstance, getContext, getDebug, getInputStream, getOutputStream, getParam, getParser, getReader, getWriter, isDeltaSupported, logmsg, registerScriptBeans, setConfiguration, setContext, setDebug, setInputStream, setInputStream, setInputStream, setOutputStream, setOutputStream, setParam, setParser

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.ibm.di.parser.ParserInterface

flush, getContext, getDebug, getParam, getParser, getReader, getWriter, isDeltaSupported, registerScriptBeans, setConfiguration, setContext, setDebug, setInputStream, setInputStream, setInputStream, setOutputStream, setOutputStream, setParam, setParser

Constructor Detail

CBEParser

public CBEParser()

Default constructor.

Method Detail

initInput

public void initInput()
               throws Exception

Initializes the Input. Note: this parser relies on a Reader object to read the XML document.

Overrides:

initInput in class XMLParser2

Throws:

Exception - - in case of a read error occurs.

See Also:

ParserImpl.setInputStream(java.io.Reader)

readEntry

public Entry readEntry()
                throws Exception

Reads the inputStream and fill the Entry Object that it returns

Specified by:

readEntry in interface ParserInterface

Overrides:

readEntry in class XMLParser2

Returns:

Entry - the Entry object containing the CBE attributes and the CBE object itself or null if Input is exhausted.

Throws:

Exception -

Exception - If unable to parse a document to a CBE object

FormattingException - incorrect XML is reached.

DOMException - If unable to move or copy a node from one document to another

initOutput

public void initOutput()
                throws Exception

Initialize and prepare the outputStream and prepare the outputDoc.

Overrides:

initOutput in class XMLParser2

Throws:

Exception - if an error occurs.

writeEntry

public void writeEntry(Entry entry)
                throws Exception

Create/get the CBE object and convert it to XML. Then update outpuDoc and prepare it for writing. When the parser is done the flush() method will write the document to the outputStream.

Specified by:

writeEntry in interface ParserInterface

Overrides:

writeEntry in class XMLParser2

Parameters:

entry - - The entry that is going to be written to the outputStream as XML

Throws:

Exception - - in the following cases:

Invalid Document Object retrieved from the XML

If unable to generate CBE object from attributes

If unable to parse a XML to a Document

If Unable to work with CBE Node from the Document

DOMException - If unable to move or copy a node from one document to another

ValidationException - If the passed CBE object is invalid.

closeParser

public void closeParser()
                 throws Exception

This method closes the parser's streams

Specified by:

closeParser in interface ParserInterface

Overrides:

closeParser in class XMLParser2

Throws:

Exception - in case an error occurs

getVersion

public String getVersion()

Version information.

Specified by:

getVersion in interface VersionInfoInterface

Overrides:

getVersion in class XMLParser2

Returns:

version information

querySchema

public Object querySchema(Object source)

This Parser does not support dynamic schema discovery and uses the default Query Schema implementation.

Specified by:

querySchema in interface ParserInterface

Overrides:

querySchema in class XMLParser2

Parameters:

source - The object on which to discover schema

Returns:

A Vector of com.ibm.di.entry.Entry objects describing each entity