Package net.sf.saxon.expr.sort

Interface EqualityMatcher<T>

Type Parameters:
T - the type of objects to be compared for equality
All Known Implementing Classes:
SimpleTypeComparison, SimpleTypeIdentityComparison
public interface EqualityMatcher<T>
Interface representing objects used to perform equality matching. This is used in preference to wrapping the objects in a wrapper with its own equals() and hashCode() methods, to avoid the overhead of wrapper objects in a large data structure

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equal(T a, T b)
    Compare two objects for equality
    int
    hash(T a)
    Compute a hash code for an object

  • Method Details

    • equal

      boolean equal(T a, T b)
      Compare two objects for equality
      Parameters:
      a - one object
      b - another object
      Returns:
      true if the two objects are deemed equal

    • hash

      int hash(T a)
      Compute a hash code for an object
      Parameters:
      a - an object
      Returns:
      a hash code, which has the property that if two objects are equal, then they must have the same hash code