org.apache.drill.exec.expr

Class ExpressionTreeMaterializer

java.lang.Object

org.apache.drill.exec.expr.ExpressionTreeMaterializer

public class ExpressionTreeMaterializer
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static LogicalExpression	addCastExpression(LogicalExpression fromExpr, TypeProtos.MajorType toType, FunctionLookupContext functionLookupContext, ErrorCollector errorCollector)
static LogicalExpression	convertToNullableType(LogicalExpression fromExpr, TypeProtos.MinorType toType, FunctionLookupContext functionLookupContext, ErrorCollector errorCollector)
static LogicalExpression	materialize(LogicalExpression expr, VectorAccessible batch, ErrorCollector errorCollector, FunctionLookupContext functionLookupContext)
static LogicalExpression	materialize(LogicalExpression expr, VectorAccessible batch, ErrorCollector errorCollector, FunctionLookupContext functionLookupContext, boolean allowComplexWriterExpr)
static LogicalExpression	materializeAndCheckErrors(LogicalExpression expr, VectorAccessible batch, FunctionLookupContext functionLookupContext)

Methods inherited from class java.lang.Object

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

Method Detail

materialize

public static LogicalExpression materialize(LogicalExpression expr,
                            VectorAccessible batch,
                            ErrorCollector errorCollector,
                            FunctionLookupContext functionLookupContext)

materializeAndCheckErrors

public static LogicalExpression materializeAndCheckErrors(LogicalExpression expr,
                                          VectorAccessible batch,
                                          FunctionLookupContext functionLookupContext)
                                                   throws SchemaChangeException

Throws:

SchemaChangeException

materialize

public static LogicalExpression materialize(LogicalExpression expr,
                            VectorAccessible batch,
                            ErrorCollector errorCollector,
                            FunctionLookupContext functionLookupContext,
                            boolean allowComplexWriterExpr)

convertToNullableType

public static LogicalExpression convertToNullableType(LogicalExpression fromExpr,
                                      TypeProtos.MinorType toType,
                                      FunctionLookupContext functionLookupContext,
                                      ErrorCollector errorCollector)

addCastExpression

public static LogicalExpression addCastExpression(LogicalExpression fromExpr,
                                  TypeProtos.MajorType toType,
                                  FunctionLookupContext functionLookupContext,
                                  ErrorCollector errorCollector)