Querying with Visual J++

  • 项目

Note

Indexing Service is no longer supported as of Windows XP and is unavailable for use as of Windows 8. Instead, use Windows Search for client side search and Microsoft Search Server Express for server side search.

 

The VJQuery Sample executes an Indexing Service query using the SQL language and the ActiveX Data Objects API. Depending on the parameters specified on the command line when the sample is run, it executes one of three different SQL queries.

  • If the command line doesn't specify a query, it executes the following default query.

    SELECT Filename, Size, Write, Path
  FROM SCOPE('DEEP TRAVERSAL OF "\"')
  WHERE CONTAINS('"Indexing Service"')

  • If the command line doesn't contain the -s parameter, but includes query text for a WHERE clause, it executes the following query.

    SELECT Filename, Size, Write, Path
  FROM SCOPE('DEEP TRAVERSAL OF "\"')
  WHERE where-clause-text

  • If the command line contains the -s parameter, it executes whatever complete SQL statement the command line contains.

The Query.java module defines the public class Query, which encapsulates setting up, executing, and displaying a query. The following topics discuss the methods of the Query class that involve Indexing Service in the sample.