org.apache.drill.exec.store.parquet

Class ParquetFilterBuilder

java.lang.Object

org.apache.drill.common.expression.visitors.AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

org.apache.drill.exec.store.parquet.ParquetFilterBuilder

All Implemented Interfaces:

ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

public class ParquetFilterBuilder
extends AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

A visitor which visits a materialized logical expression, and build ParquetFilterPredicate If a visitXXX method returns null, that means the corresponding filter branch is not qualified for pushdown.

Method Summary

Methods

Modifier and Type	Method and Description
static LogicalExpression	buildParquetFilterPredicate(LogicalExpression expr, Set<LogicalExpression> constantBoundaries, UdfUtilities udfUtilities)
LogicalExpression	visitBooleanOperator(BooleanOperator op, Set<LogicalExpression> value)
LogicalExpression	visitDateConstant(ValueExpressions.DateExpression dateExpr, Set<LogicalExpression> value)
LogicalExpression	visitDoubleConstant(ValueExpressions.DoubleExpression dExpr, Set<LogicalExpression> value)
LogicalExpression	visitFloatConstant(ValueExpressions.FloatExpression fExpr, Set<LogicalExpression> value)
LogicalExpression	visitFunctionHolderExpression(FunctionHolderExpression funcHolderExpr, Set<LogicalExpression> value)
LogicalExpression	visitIntConstant(ValueExpressions.IntExpression intExpr, Set<LogicalExpression> value)
LogicalExpression	visitLongConstant(ValueExpressions.LongExpression intExpr, Set<LogicalExpression> value)
LogicalExpression	visitTimeConstant(ValueExpressions.TimeExpression timeExpr, Set<LogicalExpression> value)
LogicalExpression	visitTimeStampConstant(ValueExpressions.TimeStampExpression tsExpr, Set<LogicalExpression> value)
LogicalExpression	visitUnknown(LogicalExpression e, Set<LogicalExpression> value)

Methods inherited from class org.apache.drill.common.expression.visitors.AbstractExprVisitor

visitBooleanConstant, visitCastExpression, visitConvertExpression, visitDecimal18Constant, visitDecimal28Constant, visitDecimal38Constant, visitDecimal9Constant, visitFunctionCall, visitIfExpression, visitIntervalDayConstant, visitIntervalYearConstant, visitNullConstant, visitNullExpression, visitQuotedStringConstant, visitSchemaPath

Methods inherited from class java.lang.Object

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

Method Detail

buildParquetFilterPredicate

public static LogicalExpression buildParquetFilterPredicate(LogicalExpression expr,
                                            Set<LogicalExpression> constantBoundaries,
                                            UdfUtilities udfUtilities)

Parameters:

expr - materialized filter expression

constantBoundaries - set of constant expressions

udfUtilities -

visitUnknown

public LogicalExpression visitUnknown(LogicalExpression e,
                             Set<LogicalExpression> value)

Specified by:

visitUnknown in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitUnknown in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

visitIntConstant

public LogicalExpression visitIntConstant(ValueExpressions.IntExpression intExpr,
                                 Set<LogicalExpression> value)
                                   throws RuntimeException

Specified by:

visitIntConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitIntConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitDoubleConstant

public LogicalExpression visitDoubleConstant(ValueExpressions.DoubleExpression dExpr,
                                    Set<LogicalExpression> value)
                                      throws RuntimeException

Specified by:

visitDoubleConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitDoubleConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitFloatConstant

public LogicalExpression visitFloatConstant(ValueExpressions.FloatExpression fExpr,
                                   Set<LogicalExpression> value)
                                     throws RuntimeException

Specified by:

visitFloatConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitFloatConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitLongConstant

public LogicalExpression visitLongConstant(ValueExpressions.LongExpression intExpr,
                                  Set<LogicalExpression> value)
                                    throws RuntimeException

Specified by:

visitLongConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitLongConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitDateConstant

public LogicalExpression visitDateConstant(ValueExpressions.DateExpression dateExpr,
                                  Set<LogicalExpression> value)
                                    throws RuntimeException

Specified by:

visitDateConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitDateConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitTimeStampConstant

public LogicalExpression visitTimeStampConstant(ValueExpressions.TimeStampExpression tsExpr,
                                       Set<LogicalExpression> value)
                                         throws RuntimeException

Specified by:

visitTimeStampConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitTimeStampConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitTimeConstant

public LogicalExpression visitTimeConstant(ValueExpressions.TimeExpression timeExpr,
                                  Set<LogicalExpression> value)
                                    throws RuntimeException

Specified by:

visitTimeConstant in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitTimeConstant in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException

visitBooleanOperator

public LogicalExpression visitBooleanOperator(BooleanOperator op,
                                     Set<LogicalExpression> value)

Specified by:

visitBooleanOperator in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitBooleanOperator in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

visitFunctionHolderExpression

public LogicalExpression visitFunctionHolderExpression(FunctionHolderExpression funcHolderExpr,
                                              Set<LogicalExpression> value)
                                                throws RuntimeException

Specified by:

visitFunctionHolderExpression in interface ExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Overrides:

visitFunctionHolderExpression in class AbstractExprVisitor<LogicalExpression,Set<LogicalExpression>,RuntimeException>

Throws:

RuntimeException