Package org.apache.drill.common.expression.visitors

Class AggregateChecker

java.lang.Object

org.apache.drill.common.expression.visitors.AggregateChecker

All Implemented Interfaces:

ExprVisitor<Boolean,ErrorCollector,RuntimeException>

public final class AggregateChecker
extends Object
implements ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Field Summary

Fields

Modifier and Type	Field	Description
static final AggregateChecker	INSTANCE

Constructor Summary

Constructors

Constructor	Description
AggregateChecker()

Method Summary

Modifier and Type	Method	Description
static boolean	isAggregating(LogicalExpression e, ErrorCollector errors)
Boolean	visitAnyValueExpression(AnyValueExpression e, ErrorCollector errors)
Boolean	visitBooleanConstant(ValueExpressions.BooleanExpression e, ErrorCollector errors)
Boolean	visitBooleanOperator(BooleanOperator op, ErrorCollector errors)
Boolean	visitCastExpression(CastExpression e, ErrorCollector errors)
Boolean	visitConvertExpression(ConvertExpression e, ErrorCollector errors)
Boolean	visitDateConstant(ValueExpressions.DateExpression intExpr, ErrorCollector errors)
Boolean	visitDecimal18Constant(ValueExpressions.Decimal18Expression decExpr, ErrorCollector errors)
Boolean	visitDecimal28Constant(ValueExpressions.Decimal28Expression decExpr, ErrorCollector errors)
Boolean	visitDecimal38Constant(ValueExpressions.Decimal38Expression decExpr, ErrorCollector errors)
Boolean	visitDecimal9Constant(ValueExpressions.Decimal9Expression decExpr, ErrorCollector errors)
Boolean	visitDoubleConstant(ValueExpressions.DoubleExpression dExpr, ErrorCollector errors)
Boolean	visitFloatConstant(ValueExpressions.FloatExpression fExpr, ErrorCollector errors)
Boolean	visitFunctionCall(FunctionCall call, ErrorCollector errors)
Boolean	visitFunctionHolderExpression(FunctionHolderExpression holder, ErrorCollector errors)
Boolean	visitIfExpression(IfExpression ifExpr, ErrorCollector errors)
Boolean	visitIntConstant(ValueExpressions.IntExpression intExpr, ErrorCollector errors)
Boolean	visitIntervalDayConstant(ValueExpressions.IntervalDayExpression intExpr, ErrorCollector errors)
Boolean	visitIntervalYearConstant(ValueExpressions.IntervalYearExpression intExpr, ErrorCollector errors)
Boolean	visitLongConstant(ValueExpressions.LongExpression intExpr, ErrorCollector errors)
Boolean	visitNullConstant(TypedNullConstant e, ErrorCollector value)
Boolean	visitNullExpression(NullExpression e, ErrorCollector value)
Boolean	visitParameter(ValueExpressions.ParameterExpression e, ErrorCollector value)
Boolean	visitQuotedStringConstant(ValueExpressions.QuotedString e, ErrorCollector errors)
Boolean	visitSchemaPath(SchemaPath path, ErrorCollector errors)
Boolean	visitTimeConstant(ValueExpressions.TimeExpression intExpr, ErrorCollector errors)
Boolean	visitTimeStampConstant(ValueExpressions.TimeStampExpression intExpr, ErrorCollector errors)
Boolean	visitTypedFieldExpr(TypedFieldExpr e, ErrorCollector value)
Boolean	visitUnknown(LogicalExpression e, ErrorCollector errors)
Boolean	visitVarDecimalConstant(ValueExpressions.VarDecimalExpression decExpr, ErrorCollector errors)

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final AggregateChecker INSTANCE

Constructor Details

AggregateChecker

public AggregateChecker()

Method Details

isAggregating

public static boolean isAggregating(LogicalExpression e,
 ErrorCollector errors)

visitFunctionCall

public Boolean visitFunctionCall(FunctionCall call,
 ErrorCollector errors)

Specified by:

visitFunctionCall in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitFunctionHolderExpression

public Boolean visitFunctionHolderExpression(FunctionHolderExpression holder,
 ErrorCollector errors)

Specified by:

visitFunctionHolderExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitBooleanOperator

public Boolean visitBooleanOperator(BooleanOperator op,
 ErrorCollector errors)

Specified by:

visitBooleanOperator in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitIfExpression

public Boolean visitIfExpression(IfExpression ifExpr,
 ErrorCollector errors)

Specified by:

visitIfExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitSchemaPath

public Boolean visitSchemaPath(SchemaPath path,
 ErrorCollector errors)

Specified by:

visitSchemaPath in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitIntConstant

public Boolean visitIntConstant(ValueExpressions.IntExpression intExpr,
 ErrorCollector errors)

Specified by:

visitIntConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitFloatConstant

public Boolean visitFloatConstant(ValueExpressions.FloatExpression fExpr,
 ErrorCollector errors)

Specified by:

visitFloatConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitLongConstant

public Boolean visitLongConstant(ValueExpressions.LongExpression intExpr,
 ErrorCollector errors)

Specified by:

visitLongConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitDoubleConstant

public Boolean visitDoubleConstant(ValueExpressions.DoubleExpression dExpr,
 ErrorCollector errors)

Specified by:

visitDoubleConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitBooleanConstant

public Boolean visitBooleanConstant(ValueExpressions.BooleanExpression e,
 ErrorCollector errors)

Specified by:

visitBooleanConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitDecimal9Constant

public Boolean visitDecimal9Constant(ValueExpressions.Decimal9Expression decExpr,
 ErrorCollector errors)

Specified by:

visitDecimal9Constant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitDecimal18Constant

public Boolean visitDecimal18Constant(ValueExpressions.Decimal18Expression decExpr,
 ErrorCollector errors)

Specified by:

visitDecimal18Constant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitDecimal28Constant

public Boolean visitDecimal28Constant(ValueExpressions.Decimal28Expression decExpr,
 ErrorCollector errors)

Specified by:

visitDecimal28Constant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitDecimal38Constant

public Boolean visitDecimal38Constant(ValueExpressions.Decimal38Expression decExpr,
 ErrorCollector errors)

Specified by:

visitDecimal38Constant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitVarDecimalConstant

public Boolean visitVarDecimalConstant(ValueExpressions.VarDecimalExpression decExpr,
 ErrorCollector errors)

Specified by:

visitVarDecimalConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitQuotedStringConstant

public Boolean visitQuotedStringConstant(ValueExpressions.QuotedString e,
 ErrorCollector errors)

Specified by:

visitQuotedStringConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitUnknown

public Boolean visitUnknown(LogicalExpression e,
 ErrorCollector errors)

Specified by:

visitUnknown in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitCastExpression

public Boolean visitCastExpression(CastExpression e,
 ErrorCollector errors)

Specified by:

visitCastExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitConvertExpression

public Boolean visitConvertExpression(ConvertExpression e,
 ErrorCollector errors)
                               throws RuntimeException

Specified by:

visitConvertExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException

visitAnyValueExpression

public Boolean visitAnyValueExpression(AnyValueExpression e,
 ErrorCollector errors)
                                throws RuntimeException

Specified by:

visitAnyValueExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException

visitDateConstant

public Boolean visitDateConstant(ValueExpressions.DateExpression intExpr,
 ErrorCollector errors)

Specified by:

visitDateConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitTimeConstant

public Boolean visitTimeConstant(ValueExpressions.TimeExpression intExpr,
 ErrorCollector errors)

Specified by:

visitTimeConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitTimeStampConstant

public Boolean visitTimeStampConstant(ValueExpressions.TimeStampExpression intExpr,
 ErrorCollector errors)

Specified by:

visitTimeStampConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitIntervalYearConstant

public Boolean visitIntervalYearConstant(ValueExpressions.IntervalYearExpression intExpr,
 ErrorCollector errors)

Specified by:

visitIntervalYearConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitIntervalDayConstant

public Boolean visitIntervalDayConstant(ValueExpressions.IntervalDayExpression intExpr,
 ErrorCollector errors)

Specified by:

visitIntervalDayConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

visitNullConstant

public Boolean visitNullConstant(TypedNullConstant e,
 ErrorCollector value)
                          throws RuntimeException

Specified by:

visitNullConstant in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException

visitNullExpression

public Boolean visitNullExpression(NullExpression e,
 ErrorCollector value)
                            throws RuntimeException

Specified by:

visitNullExpression in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException

visitParameter

public Boolean visitParameter(ValueExpressions.ParameterExpression e,
 ErrorCollector value)
                       throws RuntimeException

Specified by:

visitParameter in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException

visitTypedFieldExpr

public Boolean visitTypedFieldExpr(TypedFieldExpr e,
 ErrorCollector value)
                            throws RuntimeException

Specified by:

visitTypedFieldExpr in interface ExprVisitor<Boolean,ErrorCollector,RuntimeException>

Throws:

RuntimeException