Package org.rumbledb.runtime.scripting.declaration

Class VariableDeclStatementIterator

java.lang.Object

org.rumbledb.runtime.RuntimeIterator

org.rumbledb.runtime.AtMostOneItemLocalRuntimeIterator

org.rumbledb.runtime.scripting.declaration.VariableDeclStatementIterator

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, RuntimeIteratorInterface

public class VariableDeclStatementIterator
extends AtMostOneItemLocalRuntimeIterator

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.rumbledb.runtime.RuntimeIterator

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

Constructor Summary

Constructors

Constructor	Description
VariableDeclStatementIterator(Name variableName, List<RuntimeIterator> children, RuntimeStaticContext staticContext)

Method Summary

Modifier and Type	Method	Description
Item	materializeFirstItemOrNull(DynamicContext dynamicContext)

Methods inherited from class org.rumbledb.runtime.AtMostOneItemLocalRuntimeIterator

close, getEffectiveBooleanValueOrCheckPosition, getRDD, materialize, materializeAtMostOneItemOrNull, materializeExactlyOneItem, materializeNFirstItems, next, open, reset

Methods inherited from class org.rumbledb.runtime.RuntimeIterator

bindToVariableInDynamicContext, canProduceDataFrame, deepCopy, generateNativeQuery, getConfiguration, getDataFrame, getEffectiveBooleanValue, getHighestExecutionMode, getMetadata, getOrCreateDataFrame, getPendingUpdateList, getStaticType, getVariableDependencies, hasNext, isDataFrame, isLocal, isOpen, isRDD, isRDDOrDataFrame, isSequential, isSparkJobNeeded, isUpdating, 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

VariableDeclStatementIterator

public VariableDeclStatementIterator(Name variableName,
 List<RuntimeIterator> children,
 RuntimeStaticContext staticContext)

Method Details

materializeFirstItemOrNull

public Item materializeFirstItemOrNull(DynamicContext dynamicContext)

Specified by:

materializeFirstItemOrNull in class AtMostOneItemLocalRuntimeIterator