org.bytedeco.gandiva

Class Filter

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.gandiva.Filter

All Implemented Interfaces:

AutoCloseable

@Namespace(value="gandiva")
 @NoOffset
 @Properties(inherit=gandiva.class)
public class Filter
extends Pointer

\brief filter records based on a condition. A filter is built for a specific schema and condition. Once the filter is built, it can be used to evaluate many row batches.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
Filter(LLVMGenerator llvm_generator, Schema schema, Configuration config)
Filter(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
String	DumpIR()
Status	Evaluate(RecordBatch batch, SelectionVector out_selection) Evaluate the specified record batch, and populate output selection vector.
static Status	Make(Schema schema, Condition condition, Configuration config, Filter filter) \brief Build a filter for the given schema and condition.
static Status	Make(Schema schema, Condition condition, Filter filter) Build a filter for the given schema and condition, with the default configuration.

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Filter

public Filter(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Filter

public Filter(@UniquePtr
              LLVMGenerator llvm_generator,
              @SharedPtr @ByVal
              Schema schema,
              @SharedPtr
              Configuration config)

Method Detail

Make

@ByVal
public static Status Make(@SharedPtr @ByVal
                                  Schema schema,
                                  @SharedPtr
                                  Condition condition,
                                  @SharedPtr
                                  Filter filter)

Build a filter for the given schema and condition, with the default configuration.

Parameters:

schema - [in] schema for the record batches, and the condition.

condition - [in] filter condition.

filter - [out] the returned filter object

Make

@ByVal
public static Status Make(@SharedPtr @ByVal
                                  Schema schema,
                                  @SharedPtr
                                  Condition condition,
                                  @SharedPtr
                                  Configuration config,
                                  @SharedPtr
                                  Filter filter)

\brief Build a filter for the given schema and condition. Customize the filter with runtime configuration.

Parameters:

schema - [in] schema for the record batches, and the condition.

condition - [in] filter conditions.

config - [in] run time configuration.

filter - [out] the returned filter object

Evaluate

@ByVal
public Status Evaluate(@Const @ByRef
                               RecordBatch batch,
                               @SharedPtr
                               SelectionVector out_selection)

Evaluate the specified record batch, and populate output selection vector.

Parameters:

batch - [in] the record batch. schema should be the same as the one in 'Make'

out_selection - [in,out] the selection array with indices of rows that match the condition.

DumpIR

@StdString
public String DumpIR()