org.apache.calcite.adapter.spark

Class SparkHandlerImpl

java.lang.Object

org.apache.calcite.adapter.spark.SparkHandlerImpl

All Implemented Interfaces:

CalcitePrepare.SparkHandler

public class SparkHandlerImpl
extends Object
implements CalcitePrepare.SparkHandler

Implementation of CalcitePrepare.SparkHandler. Gives the core Calcite engine access to rules that only exist in the Spark module.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.jdbc.CalcitePrepare.SparkHandler

CalcitePrepare.SparkHandler.RuleSetBuilder

Field Summary

Fields

Modifier and Type	Field and Description
private static File	CLASS_DIR
private AtomicInteger	classId
private HttpServer	classServer
private static SparkHandlerImpl	instance
private org.apache.spark.api.java.JavaSparkContext	sparkContext
private static File	SRC_DIR

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SparkHandlerImpl() Creates a SparkHandlerImpl.

Method Summary

Methods

Modifier and Type	Method and Description
ArrayBindable	compile(ClassDeclaration expr, String s)
boolean	enabled()
RelNode	flattenTypes(RelOptPlanner planner, RelNode rootRel, boolean restructure)
static CalcitePrepare.SparkHandler	instance() Creates a SparkHandlerImpl, initializing on first call.
void	registerRules(CalcitePrepare.SparkHandler.RuleSetBuilder builder)
Object	sparkContext()

Methods inherited from class java.lang.Object

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

Field Detail

classServer

private final HttpServer classServer

classId

private final AtomicInteger classId

sparkContext

private final org.apache.spark.api.java.JavaSparkContext sparkContext

instance

private static SparkHandlerImpl instance

SRC_DIR

private static final File SRC_DIR

CLASS_DIR

private static final File CLASS_DIR

Constructor Detail

SparkHandlerImpl

private SparkHandlerImpl()

Creates a SparkHandlerImpl.

Method Detail

instance

public static CalcitePrepare.SparkHandler instance()

Creates a SparkHandlerImpl, initializing on first call. Calcite-core calls this via reflection.

flattenTypes

public RelNode flattenTypes(RelOptPlanner planner,
                   RelNode rootRel,
                   boolean restructure)

Specified by:

flattenTypes in interface CalcitePrepare.SparkHandler

registerRules

public void registerRules(CalcitePrepare.SparkHandler.RuleSetBuilder builder)

Specified by:

registerRules in interface CalcitePrepare.SparkHandler

sparkContext

public Object sparkContext()

Specified by:

sparkContext in interface CalcitePrepare.SparkHandler

enabled

public boolean enabled()

Specified by:

enabled in interface CalcitePrepare.SparkHandler

compile

public ArrayBindable compile(ClassDeclaration expr,
                    String s)

Specified by:

compile in interface CalcitePrepare.SparkHandler