Package org.apache.iotdb.db.mpp.plan.expression.leaf

Class LeafOperand

java.lang.Object

org.apache.iotdb.db.mpp.plan.expression.Expression

org.apache.iotdb.db.mpp.plan.expression.leaf.LeafOperand

Direct Known Subclasses:

ConstantOperand, TimeSeriesOperand, TimestampOperand

public abstract class LeafOperand
extends Expression

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression

inputColumnIndex, isConstantOperandCache

Constructor Summary

Constructors

Constructor	Description
LeafOperand()

Method Summary

Modifier and Type	Method	Description
void	constructUdfExecutors(java.util.Map<java.lang.String,UDTFExecutor> expressionName2Executor, java.time.ZoneId zoneId)
java.util.List<Expression>	getExpressions()	returns the DIRECT children expressions if it has any, otherwise an EMPTY list will be returned
boolean	isMappable(TypeProvider typeProvider)

Methods inherited from class org.apache.iotdb.db.mpp.plan.expression.Expression

accept, bindInputLayerColumnIndexWithExpression, bindInputLayerColumnIndexWithExpression, checkInputExpressionDataType, collectPaths, concat, deserialize, equals, getExpressionString, getExpressionStringInternal, getExpressionType, getInputColumnIndex, hashCode, inferTypes, isBuiltInAggregationFunctionExpression, isCompareBinaryExpression, isConstantOperand, isConstantOperandInternal, isTimeSeriesGeneratingFunctionExpression, isUserDefinedAggregationFunctionExpression, iterator, removeWildcards, serialize, serialize, serialize, serialize, toString, updateStatisticsForMemoryAssigner

Methods inherited from class java.lang.Object

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

Constructor Detail

LeafOperand

public LeafOperand()

Method Detail

getExpressions

public final java.util.List<Expression> getExpressions()

Description copied from class: Expression

returns the DIRECT children expressions if it has any, otherwise an EMPTY list will be returned

Specified by:

getExpressions in class Expression

constructUdfExecutors

public final void constructUdfExecutors(java.util.Map<java.lang.String,UDTFExecutor> expressionName2Executor,
                                        java.time.ZoneId zoneId)

Specified by:

constructUdfExecutors in class Expression

isMappable

public boolean isMappable(TypeProvider typeProvider)

Specified by:

isMappable in class Expression