org.apache.drill.exec.expr.fn

Class DrillComplexWriterFuncHolder

java.lang.Object

org.apache.drill.exec.expr.fn.AbstractFuncHolder

org.apache.drill.exec.expr.fn.DrillFuncHolder

org.apache.drill.exec.expr.fn.DrillSimpleFuncHolder

org.apache.drill.exec.expr.fn.DrillComplexWriterFuncHolder

All Implemented Interfaces:

FuncHolder

public class DrillComplexWriterFuncHolder
extends DrillSimpleFuncHolder

Constructor Summary

Constructors

Constructor and Description
DrillComplexWriterFuncHolder(FunctionAttributes functionAttributes, FunctionInitializer initializer)

Method Summary

Methods

Modifier and Type	Method and Description
protected ClassGenerator.HoldingContainer	generateEvalBody(ClassGenerator<?> classGenerator, ClassGenerator.HoldingContainer[] inputVariables, String body, com.sun.codemodel.JVar[] workspaceJVars, FieldReference fieldReference)
boolean	isComplexWriterFuncHolder() Checks that the current function holder stores output value using field writer instead of vector holder.

Methods inherited from class org.apache.drill.exec.expr.fn.DrillSimpleFuncHolder

createInterpreter, isNested, renderEnd

Methods inherited from class org.apache.drill.exec.expr.fn.DrillFuncHolder

addProtectedBlock, checkPrecisionRange, declareWorkspaceVariables, generateBody, getClassLoader, getCostCategory, getExpr, getInputParameters, getNullHandling, getParamCount, getParameters, getParmMajorType, getRegisteredNames, getReturnType, getReturnType, getReturnValue, getWorkspaceVars, isAggregating, isConstant, isDeterministic, isFieldReader, isNiladic, matches, meth, meth, renderStart, toString

Methods inherited from class org.apache.drill.exec.expr.fn.AbstractFuncHolder

renderMiddle

Methods inherited from class java.lang.Object

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

Constructor Detail

DrillComplexWriterFuncHolder

public DrillComplexWriterFuncHolder(FunctionAttributes functionAttributes,
                            FunctionInitializer initializer)

Method Detail

isComplexWriterFuncHolder

public boolean isComplexWriterFuncHolder()

Description copied from class: AbstractFuncHolder

Checks that the current function holder stores output value using field writer instead of vector holder.

Overrides:

isComplexWriterFuncHolder in class AbstractFuncHolder

Returns:

true if current function holder uses field writer to store the output value

generateEvalBody

protected ClassGenerator.HoldingContainer generateEvalBody(ClassGenerator<?> classGenerator,
                                               ClassGenerator.HoldingContainer[] inputVariables,
                                               String body,
                                               com.sun.codemodel.JVar[] workspaceJVars,
                                               FieldReference fieldReference)

Overrides:

generateEvalBody in class DrillSimpleFuncHolder