org.neo4j.cypher.internal.codegen

Class CompiledOrderabilityUtils

java.lang.Object

org.neo4j.cypher.internal.codegen.CompiledOrderabilityUtils

public class CompiledOrderabilityUtils
extends Object

Helper class for dealing with orderability in compiled code.

Orderability The Cypher CIP defining orderability

Ascending global sort order of disjoint types:

• MAP types
  • Regular map
  • NODE
  • RELATIONSHIP
    • LIST OF ANY?
    • PATH
    • STRING
    • BOOLEAN
    • NUMBER
      • NaN values are treated as the largest numbers in orderability only (i.e. they are put after positive infinity)
    • VOID (i.e. the type of null)
    TBD: POINT and GEOMETRY

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompiledOrderabilityUtils.SuperType

Method Summary

Modifier and Type	Method and Description
static int	compare(Object lhs, Object rhs) Compare with Cypher orderability semantics for disjoint types

Methods inherited from class java.lang.Object

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

Method Detail

compare

public static int compare(Object lhs,
                          Object rhs)

Compare with Cypher orderability semantics for disjoint types

Parameters:

lhs -

rhs -

Returns: