com.neeve.ods

Interface IStoreQueryEngine

All Superinterfaces:

IdxFieldResolver<IStoreObject>, QueryEngine<com.eaio.uuid.UUID,IStoreObject>

public interface IStoreQueryEngine
extends QueryEngine<com.eaio.uuid.UUID,IStoreObject>

A IStoreQueryEngine provides indexing and query capabilities for IStoreBindings.

Nested Class Summary

Nested classes/interfaces inherited from interface com.neeve.query.QueryEngine

QueryEngine.BackgroundIndexingPolicy

Method Summary

Methods

Modifier and Type	Method and Description
IStoreQuery	createQuery() Creates an empty Query that can be executed against this QueryEngine.
IStoreQuery	createQuery(String xsql) Creates a Query corresponding to the provided SELECT statement.
IStoreQueryResultSet	execute(IStoreQuery query) Executes the given log query against the logs added to this IStoreQueryEngine.
IStoreQueryResultSet	execute(String xsql) Executes an xpql query against this QueryEngine.
<T> IStoreField<T>	getField(Class<?> objectType, String fieldPath) Gets a field for the given recordType and field path.
<T> IStoreField<T>	getField(Class<?> objectType, String fieldPath, Class<T> fieldType, Class<?>... pathTypes) Gets a field for the given recordType and field path.
<T> IStoreField<T>	getField(String columnDefinition) Parses a field using the query engine's parser.
<T> IStoreField<T>	getField(String objectTypeName, String fieldPath) Gets a field from the given type name and fieldPath.

Methods inherited from interface com.neeve.query.QueryEngine

addRepository, close, createIndex, createIndex, createIndex, dropIndex, dropIndex, execute, executeStatement, getFetchRatioThreshold, getIndexedFields, getNonUniqueIndex, getRepositories, getUniqueIndex, removeRepository, setAutoIndexing, setAutoIndexLimit, setBackgroundIndexingPolicy, setDefaultIndexing, setDefaultPackage, setFetchRatioThreshold, setQueryStatGeneration, setSortAreaInMemoryCardinality, waitForBackgroundIndexing

Method Detail

execute

IStoreQueryResultSet execute(String xsql)

Description copied from interface: QueryEngine

Executes an xpql query against this QueryEngine.

Specified by:

execute in interface QueryEngine<com.eaio.uuid.UUID,IStoreObject>

Parameters:

xsql - The SELECT statement to execute.

Returns:

the QueryResult.

createQuery

IStoreQuery createQuery(String xsql)

Description copied from interface: QueryEngine

Creates a Query corresponding to the provided SELECT statement.

Specified by:

createQuery in interface QueryEngine<com.eaio.uuid.UUID,IStoreObject>

Parameters:

xsql - The query string

createQuery

IStoreQuery createQuery()

Description copied from interface: QueryEngine

Creates an empty Query that can be executed against this QueryEngine.

Specified by:

createQuery in interface QueryEngine<com.eaio.uuid.UUID,IStoreObject>

Returns:

A new Query.

execute

IStoreQueryResultSet execute(IStoreQuery query)

Executes the given log query against the logs added to this IStoreQueryEngine.

Parameters:

query - The query to execute.

Returns:

The IStoreQueryResultSet results.

getField

<T> IStoreField<T> getField(String columnDefinition)
                        throws QueryException,
                               QueryParseException

Description copied from interface: QueryEngine

Parses a field using the query engine's parser.

Specified by:

getField in interface QueryEngine<com.eaio.uuid.UUID,IStoreObject>

Parameters:

columnDefinition - A field.

Returns:

The resolved field

Throws:

QueryParseException - if the columnDefinition can't be parsed as a valid column name

QueryException - if there is an error resolving the field

getField

<T> IStoreField<T> getField(String objectTypeName,
                          String fieldPath)

Description copied from interface: IdxFieldResolver

Gets a field from the given type name and fieldPath.

Specified by:

getField in interface IdxFieldResolver<IStoreObject>

Parameters:

objectTypeName - The typeName of the log entry's object.

fieldPath - The bean path of the field.

Returns:

The resolved field.

getField

<T> IStoreField<T> getField(Class<?> objectType,
                          String fieldPath)

Description copied from interface: IdxFieldResolver

Gets a field for the given recordType and field path. Typically the recordType must be a subclass of the the IdxFieldResolver's RECORD type, but it is possible that some implementation can infer a field of RECORD type based on an alternative type.

Specified by:

getField in interface IdxFieldResolver<IStoreObject>

Parameters:

objectType - The class of the corresponding record.

fieldPath - The bean path of the field.

Returns:

The resolved field.

getField

<T> IStoreField<T> getField(Class<?> objectType,
                          String fieldPath,
                          Class<T> fieldType,
                          Class<?>... pathTypes)

Description copied from interface: IdxFieldResolver

Gets a field for the given recordType and field path. Typically the recordType must be a subclass of the the IdxFieldResolver's RECORD type, but it is possible that some implementation can infer a field of RECORD type based on an alternative type.

Specified by:

getField in interface IdxFieldResolver<IStoreObject>

Parameters:

objectType - The class of the corresponding record.

fieldPath - The bean path of the field.

fieldType - Indicates the required type of the field.

pathTypes - For cases where types in the field path are ambiguous, this allows specifying specific types for the intermediate paths.

Returns:

The resolved field.