com.ibm.mm.sdk.common

Interface dkQueryEvaluator

All Known Subinterfaces:

dkDatastore, dkDatastoreIntICM, dkQueryManager

All Known Implementing Classes:

DKDatastoreICM, dkQueryableCollection, DKResults

public interface dkQueryEvaluator

Interface for evaluating queries against a CM8 datastore.

This interface defines the contract for executing queries and retrieving results. Query evaluators process query strings in various query languages (such as SQL or XQPE) and return the matching objects from the datastore.

The evaluation process typically involves parsing the query, executing it against the underlying content repository, and wrapping the results in CM8-compatible objects.

See Also:

dkQueryManager, dkDatastore

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(java.lang.String query, short qlType, DKNVPair[] params) Evaluates a query and returns the results.

Method Detail

evaluate

java.lang.Object evaluate(java.lang.String query,
                          short qlType,
                          DKNVPair[] params)
                   throws DKException,
                          java.lang.Exception

Evaluates a query and returns the results.

This method executes the specified query string using the given query language and optional parameters. The results are returned as a collection of data objects that match the query criteria.

Parameters:

query - the query string to evaluate

qlType - the query language type (e.g., DK_CM_XQPE_QL_TYPE for XQPE, DK_CM_SQL for SQL)

params - optional array of name-value pairs for query parameters and options

Returns:

the query results, typically as a DKResults collection or similar object

Throws:

DKException - if the query evaluation fails

java.lang.Exception - if an unexpected error occurs during evaluation