Package org.rumbledb.runtime.scripting

Class ProgramIterator

java.lang.Object

org.rumbledb.runtime.RuntimeIterator

org.rumbledb.runtime.HybridRuntimeIterator

org.rumbledb.runtime.scripting.ProgramIterator

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, RuntimeIteratorInterface

public class ProgramIterator
extends HybridRuntimeIterator

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.rumbledb.runtime.HybridRuntimeIterator

result

Fields inherited from class org.rumbledb.runtime.RuntimeIterator

children, currentDynamicContextForLocalExecution, FLOW_EXCEPTION_MESSAGE, hasNext, isOpen, isSequential, isUpdating, staticContext, staticURI

Constructor Summary

Constructors

Constructor	Description
ProgramIterator(RuntimeIterator statementsAndExprIterator, RuntimeStaticContext staticContext)

Method Summary

Modifier and Type	Method	Description
protected void	closeLocal()
JSoundDataFrame	getDataFrame(DynamicContext dynamicContext)
PendingUpdateList	getPendingUpdateList(DynamicContext context)
protected org.apache.spark.api.java.JavaRDD<Item>	getRDDAux(DynamicContext context)
protected boolean	hasNextLocal()
protected boolean	implementsDataFrames()
boolean	isSequential()
boolean	isUpdating()
protected Item	nextLocal()
protected void	openLocal()
protected void	resetLocal()

Methods inherited from class org.rumbledb.runtime.HybridRuntimeIterator

close, dataFrameToRDDOfItems, fallbackToRDDIfDFNotImplemented, getRDD, hasNext, implementsLocal, implementsRDD, materialize, materializeAtMostOneItemOrNull, materializeExactlyOneItem, materializeFirstItemOrNull, materializeNFirstItems, next, open, reset

Methods inherited from class org.rumbledb.runtime.RuntimeIterator

bindToVariableInDynamicContext, canProduceDataFrame, deepCopy, generateNativeQuery, getConfiguration, getEffectiveBooleanValue, getEffectiveBooleanValueOrCheckPosition, getHighestExecutionMode, getMetadata, getOrCreateDataFrame, getStaticType, getVariableDependencies, isDataFrame, isLocal, isOpen, isRDD, isRDDOrDataFrame, isSparkJobNeeded, materialize, materializeAtMostOneItemOrDefault, print, printToStandardError, read, setStaticContext, write

Methods inherited from class java.lang.Object

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

Constructor Details

ProgramIterator

public ProgramIterator(RuntimeIterator statementsAndExprIterator,
 RuntimeStaticContext staticContext)

Method Details

getRDDAux

protected org.apache.spark.api.java.JavaRDD<Item> getRDDAux(DynamicContext context)

Specified by:

getRDDAux in class HybridRuntimeIterator

openLocal

protected void openLocal()

Specified by:

openLocal in class HybridRuntimeIterator

closeLocal

protected void closeLocal()

Specified by:

closeLocal in class HybridRuntimeIterator

resetLocal

protected void resetLocal()

Specified by:

resetLocal in class HybridRuntimeIterator

hasNextLocal

protected boolean hasNextLocal()

Specified by:

hasNextLocal in class HybridRuntimeIterator

implementsDataFrames

protected boolean implementsDataFrames()

Overrides:

implementsDataFrames in class HybridRuntimeIterator

getDataFrame

public JSoundDataFrame getDataFrame(DynamicContext dynamicContext)

Overrides:

getDataFrame in class RuntimeIterator

nextLocal

protected Item nextLocal()

Specified by:

nextLocal in class HybridRuntimeIterator

isSequential

public boolean isSequential()

Overrides:

isSequential in class RuntimeIterator

isUpdating

public boolean isUpdating()

Overrides:

isUpdating in class RuntimeIterator

getPendingUpdateList

public PendingUpdateList getPendingUpdateList(DynamicContext context)

Overrides:

getPendingUpdateList in class RuntimeIterator