Package org.apache.drill.exec.store.druid

Class DruidFilterBuilder

java.lang.Object

org.apache.drill.common.expression.visitors.AbstractExprVisitor<DruidScanSpec,Void,RuntimeException>

org.apache.drill.exec.store.druid.DruidFilterBuilder

All Implemented Interfaces:

ExprVisitor<DruidScanSpec,Void,RuntimeException>

public class DruidFilterBuilder
extends AbstractExprVisitor<DruidScanSpec,Void,RuntimeException>

Constructor Summary

Constructors

Constructor	Description
DruidFilterBuilder(DruidGroupScan groupScan, LogicalExpression conditionExp)

Method Summary

Modifier and Type	Method	Description
boolean	isAllExpressionsConverted()
DruidScanSpec	parseTree()
DruidScanSpec	visitBooleanOperator(BooleanOperator op, Void value)
DruidScanSpec	visitFunctionCall(FunctionCall call, Void value)
DruidScanSpec	visitUnknown(LogicalExpression e, Void value)	Handles implementation-specific expressions not known to the visitor structure.

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

visitAnyValueExpression, visitBooleanConstant, visitCastExpression, visitConvertExpression, visitDateConstant, visitDecimal18Constant, visitDecimal28Constant, visitDecimal38Constant, visitDecimal9Constant, visitDoubleConstant, visitFloatConstant, visitFunctionHolderExpression, visitIfExpression, visitIntConstant, visitIntervalDayConstant, visitIntervalYearConstant, visitLongConstant, visitNullConstant, visitNullExpression, visitParameter, visitQuotedStringConstant, visitSchemaPath, visitTimeConstant, visitTimeStampConstant, visitTypedFieldExpr, visitVarDecimalConstant

Methods inherited from class java.lang.Object

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

Constructor Details

DruidFilterBuilder

public DruidFilterBuilder(DruidGroupScan groupScan,
 LogicalExpression conditionExp)

Method Details

parseTree

public DruidScanSpec parseTree()

isAllExpressionsConverted

public boolean isAllExpressionsConverted()

visitUnknown

public DruidScanSpec visitUnknown(LogicalExpression e,
 Void value)
                           throws RuntimeException

Description copied from class: AbstractExprVisitor

Handles implementation-specific expressions not known to the visitor structure. Since there are no "visitFoo" methods for these "unknown" expressions, subclassses should use the functionally-equivalent instanceof approach to parse out these "unknown" expressions.

Specified by:

visitUnknown in interface ExprVisitor<DruidScanSpec,Void,RuntimeException>

Overrides:

visitUnknown in class AbstractExprVisitor<DruidScanSpec,Void,RuntimeException>

Throws:

RuntimeException

visitBooleanOperator

public DruidScanSpec visitBooleanOperator(BooleanOperator op,
 Void value)

Specified by:

visitBooleanOperator in interface ExprVisitor<DruidScanSpec,Void,RuntimeException>

Overrides:

visitBooleanOperator in class AbstractExprVisitor<DruidScanSpec,Void,RuntimeException>

visitFunctionCall

public DruidScanSpec visitFunctionCall(FunctionCall call,
 Void value)
                                throws RuntimeException

Specified by:

visitFunctionCall in interface ExprVisitor<DruidScanSpec,Void,RuntimeException>

Overrides:

visitFunctionCall in class AbstractExprVisitor<DruidScanSpec,Void,RuntimeException>

Throws:

RuntimeException