Lucene - Indexing Operations

In this chapter, we'll discuss the four major operations of indexing. These operations are useful at various times and are used throughout of a software search application.

Indexing Operations

Following is a list of commonly-used operations during indexing process.

S.No.	Operation & Description
1	Add Document This operation is used in the initial stage of the indexing process to create the indexes on the newly available content.
2	Update Document This operation is used to update indexes to reflect the changes in the updated contents. It is similar to recreating the index.
3	Delete Document This operation is used to update indexes to exclude the documents which are not required to be indexed/searched.
4	Field Options Field options specify a way or control the ways in which the contents of a field are to be made searchable.