Uses of Class
com.pervasive.datarush.ports.record.DataDistribution

Packages that use DataDistribution

Package	Description
com.pervasive.datarush.analytics.r
com.pervasive.datarush.operators.assertion	Provides operators for making assertions on flows and files.
com.pervasive.datarush.operators.io	Provides base file I/O components including encoders and decoders.
com.pervasive.datarush.operators.partition	Provides operators for partitioning and unpartitioning flows of data.
com.pervasive.datarush.ports.record	Provides implementations of port objects related to the flow of record sets between operators.

Uses of DataDistribution in com.pervasive.datarush.analytics.r

Methods in com.pervasive.datarush.analytics.r that return DataDistribution

Modifier and Type	Method and Description
DataDistribution	RunRScript.getRequiredDataDistribution() Get the value set for the required data distribution of the input port of this operator.

Methods in com.pervasive.datarush.analytics.r with parameters of type DataDistribution

Modifier and Type	Method and Description
void	RunRScript.setRequiredDataDistribution(DataDistribution dataDistribution) Set the data distribution requirements for the input port of this operator.

Uses of DataDistribution in com.pervasive.datarush.operators.assertion

Methods in com.pervasive.datarush.operators.assertion that return DataDistribution

Modifier and Type	Method and Description
DataDistribution	AssertMetadata.getDataDistribution() Get the DataDistribution to assert.

Methods in com.pervasive.datarush.operators.assertion with parameters of type DataDistribution

Modifier and Type	Method and Description
void	AssertMetadata.setDataDistribution(DataDistribution dataDistribution) Set the DataDistribution to assert.

Uses of DataDistribution in com.pervasive.datarush.operators.io

Methods in com.pervasive.datarush.operators.io that return DataDistribution

Modifier and Type	Method and Description
DataDistribution	FileMetadata.getDataDistribution() Returns the data partitioning of the file.

Constructors in com.pervasive.datarush.operators.io with parameters of type DataDistribution

Constructor and Description
FileMetadata(RecordTokenType type, DataOrdering dataOrdering, DataDistribution dataDistribution) Create a FileMetadata of the given type, ordering, distribution, and parallelism.

Uses of DataDistribution in com.pervasive.datarush.operators.partition

Methods in com.pervasive.datarush.operators.partition that return DataDistribution

Modifier and Type	Method and Description
DataDistribution	PartitionHint.getPartitioning() Gets the data distribution of the output.

Methods in com.pervasive.datarush.operators.partition with parameters of type DataDistribution

Modifier and Type	Method and Description
void	PartitionHint.setPartitioning(DataDistribution partitioning) Sets the data distribution of the output.

Constructors in com.pervasive.datarush.operators.partition with parameters of type DataDistribution

Constructor and Description
PartitionHint(DataDistribution partitioning) Forces a partitioning into parallel streams of data guaranteeing the specified distribution.

Uses of DataDistribution in com.pervasive.datarush.ports.record

Subclasses of DataDistribution in com.pervasive.datarush.ports.record

Modifier and Type	Class and Description
class	BalancedDistribution Used to redistribute the data in a roughly balanced fashion.
class	DynamicRangeDataDistribution A distribution where data is range-partitioned by a selected array of keys.
class	FullDataDistribution An operator may set this as their requiredDataDistribution in order to indicate that the data needs to be sent to all nodes in the cluster (or all threads in the case of pseudo-distributed operation).
class	KeyDrivenDataDistribution DataDistribution based on a set of keys from the input data.
class	PartialDataDistribution Base class for all distributions that represent a partitioning of the data.
class	PartialDynamicDataDistribution Base class for all distributions whose partitioning parameters are based on the data.
class	PartialStaticDataDistribution Base class for all distributions whose partitioning parameters are specified statically.
class	UnspecifiedPartialDistribution The default data distribution; if unspecified an operator will receive data in the same distribution as the upstream operator.

Methods in com.pervasive.datarush.ports.record that return DataDistribution

Modifier and Type	Method and Description
DataDistribution	RecordPort.getCombinedDataDistribution(MetadataContext ctx) Gets the required data distribution of this port
DataDistribution	RecordMetadata.getDataDistribution() Returns the data partitioning of the record port.
DataDistribution	RecordPort.getRequiredDataDistribution(MetadataContext ctx) Gets the required data distribution of this port
DataDistribution	RecordPort.getSourceDataDistribution(MetadataContext ctx) Returns source data distribution associated with this input port.
abstract DataDistribution	DataDistribution.remap(FieldRemapping mapping) Applies the given field remapping to this mapping, changing names as required.

Methods in com.pervasive.datarush.ports.record with parameters of type DataDistribution

Modifier and Type	Method and Description
RecordMetadata	RecordMetadata.distributed(DataDistribution dataDistribution) Returns a new RecordMetadata, equivalent to this, but with dataDistribution set to the specified value.
static KeyDrivenDataDistribution	MetadataUtil.negotiate(DataDistribution distribution, String... keys) Negotiates the required data distribution with the specified distribution using the given grouping fields.
void	RecordPort.setOutputDataDistribution(MetadataCalculationContext ctx, DataDistribution distribution) Sets the data partitioning associated with the given record port.
void	RecordPort.setRequiredDataDistribution(MetadataCalculationContext ctx, DataDistribution distribution) Sets the required data distribution of this input port.

Constructors in com.pervasive.datarush.ports.record with parameters of type DataDistribution

Constructor and Description
RecordMetadata(RecordTokenType type, DataOrdering dataOrdering, DataDistribution dataDistribution) Create a RecordMetadata of the given type, ordering, and distribution.