Package org.apache.calcite.rex

Enum RexSimplify.SafeRexVisitor

java.lang.Object

java.lang.Enum<RexSimplify.SafeRexVisitor>

org.apache.calcite.rex.RexSimplify.SafeRexVisitor

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<RexSimplify.SafeRexVisitor>, RexVisitor<java.lang.Boolean>

Enclosing class:

RexSimplify

static enum RexSimplify.SafeRexVisitor
extends java.lang.Enum<RexSimplify.SafeRexVisitor>
implements RexVisitor<java.lang.Boolean>

Decides whether it is safe to flatten the given case part into AND/ORs

Enum Constant Summary

Enum Constants

Enum Constant	Description
INSTANCE

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Set<SqlKind>	safeOps

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SafeRexVisitor()

Method Summary

Modifier and Type	Method	Description
static RexSimplify.SafeRexVisitor	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static RexSimplify.SafeRexVisitor[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.
java.lang.Boolean	visitCall(RexCall call)
java.lang.Boolean	visitCorrelVariable(RexCorrelVariable correlVariable)
java.lang.Boolean	visitDynamicParam(RexDynamicParam dynamicParam)
java.lang.Boolean	visitFieldAccess(RexFieldAccess fieldAccess)
java.lang.Boolean	visitInputRef(RexInputRef inputRef)
java.lang.Boolean	visitLiteral(RexLiteral literal)
java.lang.Boolean	visitLocalRef(RexLocalRef localRef)
java.lang.Boolean	visitOver(RexOver over)
java.lang.Boolean	visitPatternFieldRef(RexPatternFieldRef fieldRef)
java.lang.Boolean	visitRangeRef(RexRangeRef rangeRef)
java.lang.Boolean	visitSubQuery(RexSubQuery subQuery)
java.lang.Boolean	visitTableInputRef(RexTableInputRef fieldRef)

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final RexSimplify.SafeRexVisitor INSTANCE

Field Detail

safeOps

private final java.util.Set<SqlKind> safeOps

Constructor Detail

SafeRexVisitor

private SafeRexVisitor()

Method Detail

values

public static RexSimplify.SafeRexVisitor[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (RexSimplify.SafeRexVisitor c : RexSimplify.SafeRexVisitor.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RexSimplify.SafeRexVisitor valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

visitInputRef

public java.lang.Boolean visitInputRef(RexInputRef inputRef)

Specified by:

visitInputRef in interface RexVisitor<java.lang.Boolean>

visitLocalRef

public java.lang.Boolean visitLocalRef(RexLocalRef localRef)

Specified by:

visitLocalRef in interface RexVisitor<java.lang.Boolean>

visitLiteral

public java.lang.Boolean visitLiteral(RexLiteral literal)

Specified by:

visitLiteral in interface RexVisitor<java.lang.Boolean>

visitCall

public java.lang.Boolean visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<java.lang.Boolean>

visitOver

public java.lang.Boolean visitOver(RexOver over)

Specified by:

visitOver in interface RexVisitor<java.lang.Boolean>

visitCorrelVariable

public java.lang.Boolean visitCorrelVariable(RexCorrelVariable correlVariable)

Specified by:

visitCorrelVariable in interface RexVisitor<java.lang.Boolean>

visitDynamicParam

public java.lang.Boolean visitDynamicParam(RexDynamicParam dynamicParam)

Specified by:

visitDynamicParam in interface RexVisitor<java.lang.Boolean>

visitRangeRef

public java.lang.Boolean visitRangeRef(RexRangeRef rangeRef)

Specified by:

visitRangeRef in interface RexVisitor<java.lang.Boolean>

visitFieldAccess

public java.lang.Boolean visitFieldAccess(RexFieldAccess fieldAccess)

Specified by:

visitFieldAccess in interface RexVisitor<java.lang.Boolean>

visitSubQuery

public java.lang.Boolean visitSubQuery(RexSubQuery subQuery)

Specified by:

visitSubQuery in interface RexVisitor<java.lang.Boolean>

visitTableInputRef

public java.lang.Boolean visitTableInputRef(RexTableInputRef fieldRef)

Specified by:

visitTableInputRef in interface RexVisitor<java.lang.Boolean>

visitPatternFieldRef

public java.lang.Boolean visitPatternFieldRef(RexPatternFieldRef fieldRef)

Specified by:

visitPatternFieldRef in interface RexVisitor<java.lang.Boolean>