Package org.springframework.data.cassandra.repository.query

Class AbstractCassandraQuery

java.lang.Object

org.springframework.data.cassandra.repository.query.CassandraRepositoryQuerySupport

org.springframework.data.cassandra.repository.query.AbstractCassandraQuery

All Implemented Interfaces:

org.springframework.data.repository.query.RepositoryQuery

Direct Known Subclasses:

PartTreeCassandraQuery, StringBasedCassandraQuery

public abstract class AbstractCassandraQuery
extends CassandraRepositoryQuerySupport

Base class for RepositoryQuery implementations for Cassandra.

Author:

Mark Paluch, John Blum

See Also:

• CassandraRepositoryQuerySupport

Field Summary

Fields inherited from class org.springframework.data.cassandra.repository.query.CassandraRepositoryQuerySupport

log

Constructor Summary

Constructors

Constructor	Description
AbstractCassandraQuery(CassandraQueryMethod queryMethod, CassandraOperations operations)	Create a new AbstractCassandraQuery from the given CassandraQueryMethod and CassandraOperations.

Method Summary

Modifier and Type	Method	Description
protected abstract com.datastax.oss.driver.api.core.cql.SimpleStatement	createQuery(CassandraParameterAccessor accessor)	Creates a Statement using the given ParameterAccessor
Object	execute(Object[] parameters)
protected CassandraOperations	getOperations()	Return a reference to the CassandraOperations used to execute this Cassandra query.
protected abstract boolean	isCountQuery()	Returns whether the query should get a count projection applied.
protected abstract boolean	isExistsQuery()	Returns whether the query should get an exists projection applied.
protected abstract boolean	isLimiting()	Return whether the query has an explicit limit set.
protected abstract boolean	isModifyingQuery()	Returns whether the query is a modifying query.

Methods inherited from class org.springframework.data.cassandra.repository.query.CassandraRepositoryQuerySupport

getEntityInstantiators, getMappingContext, getQueryMethod, getQueryStatementCreator

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractCassandraQuery

public AbstractCassandraQuery(CassandraQueryMethod queryMethod,
 CassandraOperations operations)

Create a new AbstractCassandraQuery from the given CassandraQueryMethod and CassandraOperations.

Parameters:

queryMethod - must not be null.

operations - must not be null.

Method Details

getOperations

protected CassandraOperations getOperations()

Return a reference to the CassandraOperations used to execute this Cassandra query.

Returns:

a reference to the CassandraOperations used to execute this Cassandra query.

See Also:

• CassandraOperations

execute

@Nullable
public Object execute(Object[] parameters)

createQuery

protected abstract com.datastax.oss.driver.api.core.cql.SimpleStatement createQuery(CassandraParameterAccessor accessor)

Creates a Statement using the given ParameterAccessor

Parameters:

accessor - must not be null.

isCountQuery

protected abstract boolean isCountQuery()

Returns whether the query should get a count projection applied.

Returns:

a boolean value indicating whether the query is a count projection.

Since:

2.1

isExistsQuery

protected abstract boolean isExistsQuery()

Returns whether the query should get an exists projection applied.

Returns:

a boolean value indicating whether the query is an exists projection.

Since:

2.1

isLimiting

protected abstract boolean isLimiting()

Return whether the query has an explicit limit set.

Returns:

a boolean value indicating whether the query has an explicit limit set.

Since:

2.0.4

isModifyingQuery

protected abstract boolean isModifyingQuery()

Returns whether the query is a modifying query.

Returns:

a boolean value indicating whether the query is a modifying query.

Since:

2.2