Searching process is again one of the core functionality provided by
Lucene. It's flow is similar to that of indexing process. Basic search
of lucene can be made using following classes which can also be termed
as foundation classes for all search related operations.
Searching Classes:
Following is the list of commonly used classes during searching process.
| Sr. No. | Class & Description |
|---|
| 1 | IndexSearcher
This class act as a core component which reads/searches indexes
created after indexing process. It takes directory instance pointing to
the location containing the indexes. |
| 2 | Term
This class is the lowest unit of searching. It is similar to Field in indexing process. |
| 3 | Query
Query is an abstract class and contains various utility methods and
is the parent of all types of queries that lucene uses during search
process. |
| 4 | TermQuery
TermQuery is the most commonly used query object and is the foundation of many complex queries that lucene can make use of. |
| 5 | TopDocs
TopDocs points to the top N search results which matches the search
criteria. It is simple container of pointers to point to documents which
are output of search result. |
No comments:
Post a Comment