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15.8. Querying Example
15.8.1. The Query Module Example Copiar enlaceEnlace copiado en el portapapeles!
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The following provides an example of how to set up and run a query in JBoss Data Grid.
In this example, the "Person" object has been annotated using the following:
Assuming several of these "Person" objects have been stored in JBoss Data Grid, they can be searched using querying. The following code creates a
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SearchManager
and QueryBuilder
instance:
The
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SearchManager
and QueryBuilder
are used to construct a Lucene query. The Lucene query is then passed to the SearchManager
to obtain a CacheQuery
instance:
CacheQuery query = manager.getQuery(luceneQuery); for (Object result: query) { System.out.println("Found " + result); }
CacheQuery query = manager.getQuery(luceneQuery);
for (Object result: query) {
System.out.println("Found " + result);
}
This
CacheQuery
instance contains the results of the query, and can be used to produce a list or it can be used for repeat queries.
Important
The Query Module is currently only available as a Technical Preview for JBoss Data Grid 6.1.