com.datastax.oss.dsbulk.mapping

Class DefaultMapping

java.lang.Object

com.datastax.oss.dsbulk.mapping.DefaultMapping

All Implemented Interfaces:

Mapping

public class DefaultMapping
extends Object
implements Mapping

Constructor Summary

Constructors

Constructor and Description
DefaultMapping(com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSetMultimap<Field,CQLWord> fieldsToVariables, ConvertingCodecFactory codecFactory, com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSet<CQLWord> writeTimeVariables)

Method Summary

Modifier and Type	Method and Description
<T> TypeCodec<T>	codec(CQLWord variable, DataType cqlType, GenericType<? extends T> javaType) Returns the codec to use for the given bound statement or row variable.
Set<Field>	fields() Returns all the fields in this mapping.
Set<CQLWord>	fieldToVariables(Field field) Maps the given field to one or more variables in a write bound statement.
Set<CQLWord>	variables() Returns all the variables in this mapping.
Set<Field>	variableToFields(CQLWord variable) Maps the given row variable to one or more fields in a record.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultMapping

public DefaultMapping(com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSetMultimap<Field,CQLWord> fieldsToVariables,
                      ConvertingCodecFactory codecFactory,
                      com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSet<CQLWord> writeTimeVariables)

Method Detail

fieldToVariables

@NonNull
public Set<CQLWord> fieldToVariables(@NonNull
                                              Field field)

Description copied from interface: Mapping

Maps the given field to one or more variables in a write bound statement.

Specified by:

fieldToVariables in interface Mapping

Parameters:

field - the field to find the variable for.

Returns:

the bound statement variables the given field maps to, or an empty collection if the field does not map to any known bound statement variable.

variableToFields

@NonNull
public Set<Field> variableToFields(@NonNull
                                            CQLWord variable)

Description copied from interface: Mapping

Maps the given row variable to one or more fields in a record.

Specified by:

variableToFields in interface Mapping

Parameters:

variable - the row variable; never null.

Returns:

the fields the given variable maps to, or an empty collection if the variable does not map to any known field.

fields

@NonNull
public Set<Field> fields()

Description copied from interface: Mapping

Returns all the fields in this mapping.

Specified by:

fields in interface Mapping

Returns:

the fields in this mapping.

variables

@NonNull
public Set<CQLWord> variables()

Description copied from interface: Mapping

Returns all the variables in this mapping.

Specified by:

variables in interface Mapping

Returns:

the variables in this mapping.

codec

@NonNull
public <T> TypeCodec<T> codec(@NonNull
                                       CQLWord variable,
                                       @NonNull
                                       DataType cqlType,
                                       @NonNull
                                       GenericType<? extends T> javaType)

Description copied from interface: Mapping

Returns the codec to use for the given bound statement or row variable.

Note that the given variable name must be supplied unquoted, even if it requires quoting to comply with the syntax of CQL identifiers.

Specified by:

codec in interface Mapping

Type Parameters:

T - the codec's Java type.

Parameters:

variable - the bound statement or row variable; never null.

cqlType - the CQL type; never null.

javaType - the Java type; never null.

Returns:

the codec to use; never null.