Appendix B: Using the Search Services

doAdvancedQuery

Description

Sends an advanced query to the search engine.

Syntax

int doAdvancedQuery ‘(‘String query,
	String queryexpr,
   String databases,
   int MaxDocs
   int relevance
   int ageType
   String ageOfInformation
   String queryField')'
throws RemoteException,
   SearchException

Parameters

query – an equation representing query text, along with query type and query operator. If query is entered, queryexpr is ignored. Combination of query type and query operators include:

MUST_WORD	SHOULD_WORD	MUSTNOT_WORD
MUST_PERSON	SHOULD_PERSON	MUSTNOT_PERSON
MUST_PHRASE	SHOULD_PHRASE	MUSTNOT_PHRASE

For example, querywithopr looks like:

MUST_WORD=Sybase EP&&MUSTNOT_WORD=Enterprise Portal && .&&

where the query results must include the words “Sybase EP” and exclude the words “Enterprise Portal.”

queryexpr – logical query expression used to query the DRE only if query is NULL.

databases – a comma-delimited list of search engine databases. An empty string means all databases from all DREs.

maxDocs – maximum number of documents to return.

relevance – the relevance of the document from 0 – 100, with 100 being the highest.

ageType – 1=days, 2=weeks, 3=months, 4=years, or 5=date range.

ageOfInformation – timeframe for which the query should be done, expressed in number of days, weeks, months, years, or in the form dd/mm/yyyy, dd/mm/yyyy.

queryField – an expression presenting a combination of query fields.

For example:

Title=ASE 12.5 design document&&Summary=ASE 12.5 design document

returns the number of result documents that contain the unique title or summary (headings after the document title) “ASE 12.5 design document.”

Return value

Number of result documents.

Returns the value: >= 0 if successful; otherwise, failure.

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