com.ibm.di.parser
Class CSVParser

java.lang.Object
  com.ibm.di.parser.ParserImpl
      com.ibm.di.parser.CSVParser

All Implemented Interfaces:

ParserInterface, VersionInfoInterface

public class CSVParser
extends ParserImpl

A class reading and writing Entries in a simple one-line-per-Entry format. CSV is short for comma-separated values, and this format is popular for storing tabular data in text form. The separator does not need to be a comma, it can be any single character.

See Also:

Connector

Field Summary

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

_debug, myConfiguration

Constructor Summary

CSVParser()
Default constructor;

CSVParser(Reader in, Writer out)
Class constructor

Method Summary

String	getLine() Returns the last line that was read or written.
String	getVersion() Version information.
void	initParser() This method is called by the hosting component (e.g.
ArrayList<String>	nextEntry() The method retrieves the values for the next Entry
Object	querySchema(Object schema) Discover the schema for the Parser.
String	quote(String src) Quotes the provided expression.
Entry	readEntry() Return the next entry from the current input stream.
void	setHeadersWritten(boolean value) Sets if header should be written
void	writeEntry(Entry entry) Write an Entry to the current output stream.

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

closeParser, 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

Constructor Detail

CSVParser

public CSVParser()

Default constructor;

CSVParser

public CSVParser(Reader in,
                 Writer out)

Class constructor

Parameters:

in - : Input stream to read from;

out - : Output stream to write to;

Method Detail

initParser

public void initParser()

This method is called by the hosting component (e.g. connector) to initialize the parser.

Specified by:

initParser in interface ParserInterface

Overrides:

initParser in class ParserImpl

readEntry

public Entry readEntry()
                throws IOException

Return the next entry from the current input stream.

Returns:

The next entry from the input stream

Throws:

IOException - if error during reading next Entry occurs.

nextEntry

public ArrayList<String> nextEntry()
                            throws IOException

The method retrieves the values for the next Entry

Returns:

List holding the values for the Entry

Throws:

IOException

writeEntry

public void writeEntry(Entry entry)
                throws Exception

Write an Entry to the current output stream.

Parameters:

entry - The entry to write

Throws:

Exception

quote

public String quote(String src)

Quotes the provided expression.

Parameters:

src - source String

Returns:

the quoted expression

setHeadersWritten

public void setHeadersWritten(boolean value)

Sets if header should be written

Parameters:

value - If false, the headers need to be written. If true, the headers are already written, and should not be written again.

getVersion

public String getVersion()

Version information.

Returns:

version information.

querySchema

public Object querySchema(Object schema)

Discover the schema for the Parser. For example, a XML Parser could return a representation of the XML Schema or the DTD referenced in a XML file.

Specified by:

querySchema in interface ParserInterface

Overrides:

querySchema in class ParserImpl

Parameters:

schema - The object on which to discover schema

Returns:

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

getLine

public String getLine()

Returns the last line that was read or written. If nothing has been read or written yet, returns null.

Returns:

the last line that was read or written

Since:

7.2