org.vfny.geoserver.zserver
Class RPNConverter

java.lang.Object
  org.vfny.geoserver.zserver.RPNConverter

public class RPNConverter

extends java.lang.Object

Helper class that converts a jzkit QueryNode into a lucene search query.

Field Summary

static java.lang.String	COMPLEX_CLASS
static java.lang.String	NEG_OR_DEC Regular Expression to filter out decimals and negative signs
static java.lang.String	QUERY_CLASS
static java.lang.String	ROOT_CLASS
static java.lang.String	TERM_CLASS
static java.lang.String	WHITE_SPACE Regular Expression to match for whitespace
static java.lang.String	WHITE_SPACE_OR_COMMA Regular Expression to split values from spaces or commas

Constructor Summary

RPNConverter(java.util.Properties attrMap)
Initializes the database and request handler.

Method Summary

java.lang.String	cleanNumber(java.lang.String number) Given a string strips out the characters that aren't parts of a number so that the string can be properly converted.
org.apache.lucene.search.Query	toLuceneQuery(com.k_int.util.RPNQueryRep.QueryNode rpnQuery) Returns a query to search the index corresponding to the z39.50 query

Methods inherited from class java.lang.Object

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

Field Detail

NEG_OR_DEC

public static final java.lang.String NEG_OR_DEC

Regular Expression to filter out decimals and negative signs

See Also:

Constant Field Values

WHITE_SPACE_OR_COMMA

public static final java.lang.String WHITE_SPACE_OR_COMMA

Regular Expression to split values from spaces or commas

See Also:

Constant Field Values

WHITE_SPACE

public static final java.lang.String WHITE_SPACE

Regular Expression to match for whitespace

See Also:

Constant Field Values

QUERY_CLASS

public static final java.lang.String QUERY_CLASS

See Also:

Constant Field Values

TERM_CLASS

public static final java.lang.String TERM_CLASS

See Also:

Constant Field Values

COMPLEX_CLASS

public static final java.lang.String COMPLEX_CLASS

See Also:

Constant Field Values

ROOT_CLASS

public static final java.lang.String ROOT_CLASS

See Also:

Constant Field Values

Constructor Detail

RPNConverter

public RPNConverter(java.util.Properties attrMap)

Initializes the database and request handler.

Parameters:

attrMap - the mappings of use attribute values to their names.

Method Detail

toLuceneQuery

public org.apache.lucene.search.Query toLuceneQuery(com.k_int.util.RPNQueryRep.QueryNode rpnQuery)
                                             throws com.k_int.IR.SearchException

Returns a query to search the index corresponding to the z39.50 query

Parameters:

rpnQuery - the internal jzkit representation of a z39.50 query

Returns:

The lucene representation of the rpnQuery

Throws:

com.k_int.IR.SearchException - DOCUMENT ME!

cleanNumber

public java.lang.String cleanNumber(java.lang.String number)

Given a string strips out the characters that aren't parts of a number so that the string can be properly converted.

Parameters:

number - A string to be converted to a number.

Returns:

the number string that won't raise a conversion error.