edu.indiana.lib.twinpeaks.search.singlesearch

Class CqlParser

java.lang.Object

org.xml.sax.helpers.DefaultHandler

edu.indiana.lib.twinpeaks.search.singlesearch.CqlParser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class CqlParser
extends org.xml.sax.helpers.DefaultHandler

Constructor Summary

Constructors

Constructor and Description
CqlParser() Constructor

Method Summary

Modifier and Type	Method and Description
void	characters(char[] buf, int offset, int len) Receive notification of character data inside an element.
String	doCQL2MetasearchCommand(String cqlSearchQuery) Converts a CQL-formatted search query into a format that the Web2 Bridge can understand.
void	endElement(String namespaceURI, String sName, String qName) Receive notification of the end of an element.
static void	main(String[] args) Main(): test
void	startElement(String namespaceURI, String sName, String qName, Attributes attrs) Receive notification of the beginning of an element.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

CqlParser

public CqlParser()

Constructor

Method Detail

doCQL2MetasearchCommand

public String doCQL2MetasearchCommand(String cqlSearchQuery)

Converts a CQL-formatted search query into a format that the Web2 Bridge can understand. Uses org.z3950.zing.cql.CQLNode.toXCQL() and SAX Parsing to convert the cqlSearchQuery into a find_command.

Parameters:

cqlSearchQuery - CQL-formatted search query.

Returns:

X-Server find_command or null if cqlSearchQuery is null or empty.

See Also:

org.z3950.zing.cql.CQLNode.toXCQL()

startElement

public void startElement(String namespaceURI,
                         String sName,
                         String qName,
                         Attributes attrs)
                  throws SAXException

Receive notification of the beginning of an element.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

See Also:

DefaultHandler

endElement

public void endElement(String namespaceURI,
                       String sName,
                       String qName)
                throws SAXException

Receive notification of the end of an element.

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

See Also:

DefaultHandler

characters

public void characters(char[] buf,
                       int offset,
                       int len)
                throws SAXException

Receive notification of character data inside an element.

Specified by:

characters in interface ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

See Also:

DefaultHandler

main

public static void main(String[] args)

Main(): test