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Cassandra support for Spring Data
/*
* Copyright 2016-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.cassandra.repository.query;
import org.springframework.data.cassandra.core.cql.QueryOptions;
import org.springframework.data.cassandra.core.mapping.CassandraType;
import org.springframework.data.repository.query.ParameterAccessor;
import org.springframework.lang.Nullable;
import com.datastax.oss.driver.api.core.type.DataType;
/**
* Cassandra-specific {@link ParameterAccessor} exposing a Cassandra {@link DataType types} that are supported by the
* driver and parameter type.
*
* @author Matthew Adams
* @author Mark Paluch
*/
public interface CassandraParameterAccessor extends ParameterAccessor {
/**
* Returns the {@link CassandraType} for the declared method parameter.
*
* @param index the parameter index
* @return the Cassandra {@link CassandraType} or {@literal null}.
* @see org.springframework.data.cassandra.core.mapping.CassandraSimpleTypeHolder
* @see org.springframework.data.cassandra.core.mapping.CassandraType
*/
@Nullable
CassandraType findCassandraType(int index);
/**
* Returns the Cassandra {@link DataType} for the declared parameter if the type is a
* {@link org.springframework.data.cassandra.core.mapping.CassandraSimpleTypeHolder simple type}. Parameter types may
* be specified using {@link org.springframework.data.cassandra.core.mapping.CassandraType}.
*
* @param index the parameter index
* @return the Cassandra {@link DataType} or {@literal null} if the parameter type cannot be determined from
* {@link org.springframework.data.cassandra.core.mapping.CassandraSimpleTypeHolder}
* @see org.springframework.data.cassandra.core.mapping.CassandraSimpleTypeHolder
* @see org.springframework.data.cassandra.core.mapping.CassandraType
*/
DataType getDataType(int index);
/**
* The actual parameter type (after unwrapping).
*
* @param index the parameter index
* @return the parameter type, never {@literal null}.
*/
Class getParameterType(int index);
/**
* Returns the raw parameter values of the underlying query method.
*
* @return the raw parameter values passed to the underlying query method.
* @since 1.5
*/
Object[] getValues();
/**
* Returns the {@link QueryOptions} associated with the associated Repository query method.
*
* @return the {@link QueryOptions} or {@literal null} if none.
* @since 2.0
*/
@Nullable
QueryOptions getQueryOptions();
}