org.springframework.data.hazelcast.repository.query

Class HazelcastPartTreeQuery

java.lang.Object

org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

org.springframework.data.hazelcast.repository.query.HazelcastPartTreeQuery

All Implemented Interfaces:

org.springframework.data.repository.query.RepositoryQuery

public class HazelcastPartTreeQuery
extends org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

There is one instance for each query method defined for a repository, providing a query from the bind parameters.

TODO The execute(java.lang.Object[]) method calls the prepareQuery(java.lang.Object[]) to bind the parameters to the query. This results in Hazelcast's PredicateBuilder being called for each query execution. A more efficient mechanism would be to some sort of templating that would allow the parameters to be instantiated into the output of the predicate builder rather than the input.

Author:

Neil Stevenson, Viacheslav Petriaiev

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery.QueryCreatorFactory<T extends org.springframework.data.repository.query.parser.AbstractQueryCreator>

Constructor Summary

Constructors

Constructor and Description

HazelcastPartTreeQuery(org.springframework.data.repository.query.QueryMethod queryMethod, org.springframework.data.repository.query.QueryMethodEvaluationContextProvider evaluationContextProvider, org.springframework.data.keyvalue.core.KeyValueOperations keyValueOperations, Class<? extends org.springframework.data.repository.query.parser.AbstractQueryCreator<?,?>> queryCreator) Create a RepositoryQuery implementation for each query method defined in a HazelcastRepository.

Method Summary

Modifier and Type	Method and Description
Object	execute(Object[] parameters) Execute this query instance, using any invocation parameters.
protected org.springframework.data.keyvalue.core.query.KeyValueQuery<?>	prepareQuery(Object[] parameters) Create the query from the bind parameters.

Methods inherited from class org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

createQuery, doExecute, getQueryMethod, prepareQuery

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HazelcastPartTreeQuery

public HazelcastPartTreeQuery(org.springframework.data.repository.query.QueryMethod queryMethod,
                              org.springframework.data.repository.query.QueryMethodEvaluationContextProvider evaluationContextProvider,
                              org.springframework.data.keyvalue.core.KeyValueOperations keyValueOperations,
                              Class<? extends org.springframework.data.repository.query.parser.AbstractQueryCreator<?,?>> queryCreator)

Create a RepositoryQuery implementation for each query method defined in a HazelcastRepository.

Parameters:

queryMethod - Method defined in HazelcastRepository

evaluationContextProvider - Not used

keyValueOperations - Interface to Hazelcast

queryCreator - Not used

Method Detail

execute

public Object execute(Object[] parameters)

Execute this query instance, using any invocation parameters.

Expecting findBy...(), countBy...() or deleteBy...()

Specified by:

execute in interface org.springframework.data.repository.query.RepositoryQuery

Overrides:

execute in class org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

Parameters:

parameters - Any parameters

Returns:

Query result

prepareQuery

protected org.springframework.data.keyvalue.core.query.KeyValueQuery<?> prepareQuery(Object[] parameters)

Create the query from the bind parameters.

Overrides:

prepareQuery in class org.springframework.data.keyvalue.repository.query.KeyValuePartTreeQuery

Parameters:

parameters - Possibly empty list of query parameters

Returns:

A ready-to-use query