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Overview of the Indexing Service technology.
To develop Indexing Service, you need these headers:
For programming guidance for this technology, see:
Enumerations
| DBCOMMANDOPENUM The DBCOMMANDOPENUM enumerated type contains a list of the possible command operators for nodes in a command tree. |
| DBCOMMANDREUSEENUM The DBCOMMANDREUSEENUM enumerated type specifies whether a state from the previous command is retained. |
| DBKINDENUM The DBKINDENUM enumerated type specifies the combination of GUID, property number, or property name to use to identify a database object. |
| DBVALUEKINDENUM The DBVALUEKINDENUM enumerated type is used to indicate the type of the union member inside a DBCOMMANDTREE structure. |
| WORDREP_BREAK_TYPE Describes the type of break that separates the current word from the previous word. |
Functions
| BindIFilterFromStorage Retrieves the IFilter interface pointer for the specified storage object. This is especially useful when filtering the contents of a document and processing embedded OLE objects that are accessible through their IStorage interfaces. |
| BindIFilterFromStream Retrieves the IFilter interface pointer for the specified storage object. This is especially useful when filtering the contents of a document and processing embedded OLE objects accessible through their IStream interfaces. |
| FindErrorNodes The ICommandTree::FindErrorNodes method traverses a command tree and returns an array of nodes with errors in them. |
| FreeCommandTree The ICommandTree::FreeCommandTree method traverses a command tree and deallocates all DBCOMMANDTREE node structures, as well as all variants in those structures. It then sets the root pointer to a NULL pointer. |
| GetCommandTree The ICommandTree::GetCommandTree method echoes the current command as a tree, including all post-processing operations that have been added. |
| LoadIFilter Retrieves IFilter from path name for object. |
| SetCatalogState Sets the catalog state for backup or other purposes. |
| SetCommandTree The ICommandTree::SetCommandTree method sets a command object's command tree, replacing the existing one or replacing a text command specified with the ICommandText interface. |
Interfaces
| ICommandTree The ICommandTree interface is optional for providers that support commands. It contains methods for manipulating query trees. Providers that support command trees must also support specifying the same functionality through the ICommandText interface. |
| IPhraseSink Handles phrases that word breakers parse from query text during query time. |
| IQuery The IQuery interface is reserved for future use. |
Structures
| CI_STATE Represents the current state of an Indexing Service catalog. |
| CIPROPERTYDEF Represents the friendly name, type, and property identifier (ID) information. |
| DBBYGUID The DBBYGUID structure supplies supplementary information for a node. |
| DBCOMMANDTREE The DBCOMMANDTREE structure is the primary data structure used to represent any node in an OLE DB command tree, as described in the Data Manipulation Operators and Data Definition Operators section of this reference. |
| DBCONTENT The DBCONTENT structure represents specific information required by the DBOP_content operator. |
| DBCONTENTPROXIMITY The DBCONTENTPROXIMITY structure represents specific information required by the DBOP_content_proximity operator. |
| DBCONTENTSCOPE The DBCONTENTSCOPE structure is used to pass a scope argument in a command tree. |
| DBCONTENTTABLE The DBCONTENTTABLE structure represents the machine and catalog names for a command tree. |
| DBCONTENTVECTOR The DBCONTENTVECTOR structure represents specific information required by the DBOP_content_vector_or operator. (DBCONTENTVECTOR) |
| DBGROUPINFO The DBCONTENTVECTOR structure represents specific information required by the DBOP_content_vector_or operator. (DBGROUPINFO) |
| DBID The DBID structure encapsulates various ways of identifying a database object. |
| DBLIKE The DBLIKE structure represents specific information required by the DBOP_like operator. |
| DBPARAMETER The DBPARAMETER structure is used to define values for scalar parameters. |
| DBPROBABILISTIC The DBPROBABILISTIC structure is reserved for future use. |
| DBRELEVANTDOCUMENT The DBRELEVANTDOCUMENT structure is reserved for future use. |
| DBSETFUNC The DBSETFUNC structure specifies the aggregation function to use in a select operation. |
| DBSORTINFO The DBSORTINFO structure stores the order in which a column will be sorted (that is, ascending or descending). This information is stored inside a DBOP_sort_list_element node. |
| DBTEXT The DBTEXT structure is used by the DBOP_text_command node. |