Package org.apache.drill.exec.compile.sig

Class ConstantExpressionIdentifier

java.lang.Object

org.apache.drill.exec.compile.sig.ConstantExpressionIdentifier

All Implemented Interfaces:

ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

public class ConstantExpressionIdentifier
extends Object
implements ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Method Summary

Modifier and Type	Method	Description
static Set<LogicalExpression>	getConstantExpressionSet(LogicalExpression e)	Get a list of expressions that mark boundaries into a constant space.
Boolean	visitAnyValueExpression(AnyValueExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitBooleanConstant(ValueExpressions.BooleanExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitBooleanOperator(BooleanOperator op, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitCastExpression(CastExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitConvertExpression(ConvertExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDateConstant(ValueExpressions.DateExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDecimal18Constant(ValueExpressions.Decimal18Expression decExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDecimal28Constant(ValueExpressions.Decimal28Expression decExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDecimal38Constant(ValueExpressions.Decimal38Expression decExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDecimal9Constant(ValueExpressions.Decimal9Expression decExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitDoubleConstant(ValueExpressions.DoubleExpression dExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitFloatConstant(ValueExpressions.FloatExpression fExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitFunctionCall(FunctionCall call, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitFunctionHolderExpression(FunctionHolderExpression holder, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitIfExpression(IfExpression ifExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitIntConstant(ValueExpressions.IntExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitIntervalDayConstant(ValueExpressions.IntervalDayExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitIntervalYearConstant(ValueExpressions.IntervalYearExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitLongConstant(ValueExpressions.LongExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitNullConstant(TypedNullConstant e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitNullExpression(NullExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitParameter(ValueExpressions.ParameterExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitQuotedStringConstant(ValueExpressions.QuotedString e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitSchemaPath(SchemaPath path, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitTimeConstant(ValueExpressions.TimeExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitTimeStampConstant(ValueExpressions.TimeStampExpression intExpr, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitTypedFieldExpr(TypedFieldExpr e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitUnknown(LogicalExpression e, IdentityHashMap<LogicalExpression,Object> value)
Boolean	visitVarDecimalConstant(ValueExpressions.VarDecimalExpression decExpr, IdentityHashMap<LogicalExpression,Object> value)

Methods inherited from class java.lang.Object

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

Method Details

getConstantExpressionSet

public static Set<LogicalExpression> getConstantExpressionSet(LogicalExpression e)

Get a list of expressions that mark boundaries into a constant space.

Parameters:

e - expression to check for constants

Returns:

list of expressions that mark boundaries into a constant space

visitFunctionCall

public Boolean visitFunctionCall(FunctionCall call,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitFunctionCall in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitFunctionHolderExpression

public Boolean visitFunctionHolderExpression(FunctionHolderExpression holder,
 IdentityHashMap<LogicalExpression,Object> value)
                                      throws RuntimeException

Specified by:

visitFunctionHolderExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitBooleanOperator

public Boolean visitBooleanOperator(BooleanOperator op,
 IdentityHashMap<LogicalExpression,Object> value)
                             throws RuntimeException

Specified by:

visitBooleanOperator in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitIfExpression

public Boolean visitIfExpression(IfExpression ifExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitIfExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitSchemaPath

public Boolean visitSchemaPath(SchemaPath path,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitSchemaPath in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitIntConstant

public Boolean visitIntConstant(ValueExpressions.IntExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)
                         throws RuntimeException

Specified by:

visitIntConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitFloatConstant

public Boolean visitFloatConstant(ValueExpressions.FloatExpression fExpr,
 IdentityHashMap<LogicalExpression,Object> value)
                           throws RuntimeException

Specified by:

visitFloatConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitLongConstant

public Boolean visitLongConstant(ValueExpressions.LongExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitLongConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDateConstant

public Boolean visitDateConstant(ValueExpressions.DateExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDateConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDecimal9Constant

public Boolean visitDecimal9Constant(ValueExpressions.Decimal9Expression decExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDecimal9Constant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitTimeConstant

public Boolean visitTimeConstant(ValueExpressions.TimeExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitTimeConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDecimal18Constant

public Boolean visitDecimal18Constant(ValueExpressions.Decimal18Expression decExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDecimal18Constant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitIntervalYearConstant

public Boolean visitIntervalYearConstant(ValueExpressions.IntervalYearExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitIntervalYearConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDecimal28Constant

public Boolean visitDecimal28Constant(ValueExpressions.Decimal28Expression decExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDecimal28Constant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitIntervalDayConstant

public Boolean visitIntervalDayConstant(ValueExpressions.IntervalDayExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitIntervalDayConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitTimeStampConstant

public Boolean visitTimeStampConstant(ValueExpressions.TimeStampExpression intExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitTimeStampConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDecimal38Constant

public Boolean visitDecimal38Constant(ValueExpressions.Decimal38Expression decExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDecimal38Constant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitVarDecimalConstant

public Boolean visitVarDecimalConstant(ValueExpressions.VarDecimalExpression decExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitVarDecimalConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitDoubleConstant

public Boolean visitDoubleConstant(ValueExpressions.DoubleExpression dExpr,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitDoubleConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitBooleanConstant

public Boolean visitBooleanConstant(ValueExpressions.BooleanExpression e,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitBooleanConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitQuotedStringConstant

public Boolean visitQuotedStringConstant(ValueExpressions.QuotedString e,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitQuotedStringConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitCastExpression

public Boolean visitCastExpression(CastExpression e,
 IdentityHashMap<LogicalExpression,Object> value)
                            throws RuntimeException

Specified by:

visitCastExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitUnknown

public Boolean visitUnknown(LogicalExpression e,
 IdentityHashMap<LogicalExpression,Object> value)

Specified by:

visitUnknown in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

visitNullConstant

public Boolean visitNullConstant(TypedNullConstant e,
 IdentityHashMap<LogicalExpression,Object> value)
                          throws RuntimeException

Specified by:

visitNullConstant in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitNullExpression

public Boolean visitNullExpression(NullExpression e,
 IdentityHashMap<LogicalExpression,Object> value)
                            throws RuntimeException

Specified by:

visitNullExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitConvertExpression

public Boolean visitConvertExpression(ConvertExpression e,
 IdentityHashMap<LogicalExpression,Object> value)
                               throws RuntimeException

Specified by:

visitConvertExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitAnyValueExpression

public Boolean visitAnyValueExpression(AnyValueExpression e,
 IdentityHashMap<LogicalExpression,Object> value)
                                throws RuntimeException

Specified by:

visitAnyValueExpression in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitParameter

public Boolean visitParameter(ValueExpressions.ParameterExpression e,
 IdentityHashMap<LogicalExpression,Object> value)
                       throws RuntimeException

Specified by:

visitParameter in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException

visitTypedFieldExpr

public Boolean visitTypedFieldExpr(TypedFieldExpr e,
 IdentityHashMap<LogicalExpression,Object> value)
                            throws RuntimeException

Specified by:

visitTypedFieldExpr in interface ExprVisitor<Boolean,IdentityHashMap<LogicalExpression,Object>,RuntimeException>

Throws:

RuntimeException