org.apache.ignite.cache.store.cassandra.common

Class PropertyMappingHelper

java.lang.Object

org.apache.ignite.cache.store.cassandra.common.PropertyMappingHelper

public class PropertyMappingHelper
extends Object

Helper class providing bunch of methods to discover fields of POJO objects and map builtin Java types to appropriate Cassandra types.

Constructor Summary

Constructors

Constructor and Description
PropertyMappingHelper()

Method Summary

Modifier and Type	Method and Description
static Object	getCassandraColumnValue(com.datastax.driver.core.Row row, String col, Class clazz, Serializer serializer) Returns value of specific column in the row returned by CQL statement.
static com.datastax.driver.core.DataType.Name	getCassandraType(Class clazz) Maps Cassandra type to specified Java type.
static PojoFieldAccessor	getPojoFieldAccessor(Class clazz, String prop) Returns property accessor by class property name.

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyMappingHelper

public PropertyMappingHelper()

Method Detail

getCassandraType

public static com.datastax.driver.core.DataType.Name getCassandraType(Class clazz)

Maps Cassandra type to specified Java type.

Parameters:

clazz - java class.

Returns:

Cassandra type.

getPojoFieldAccessor

public static PojoFieldAccessor getPojoFieldAccessor(Class clazz,
                                                     String prop)

Returns property accessor by class property name.

Parameters:

clazz - class from which to get property accessor.

prop - name of the property.

Returns:

property accessor.

getCassandraColumnValue

public static Object getCassandraColumnValue(com.datastax.driver.core.Row row,
                                             String col,
                                             Class clazz,
                                             Serializer serializer)

Returns value of specific column in the row returned by CQL statement.

Parameters:

row - row returned by CQL statement.

col - column name.

clazz - java class to which column value should be casted.

serializer - serializer to use if column stores BLOB otherwise could be null.

Returns:

row column value.