Class StringComparer


public class StringComparer extends TextComparer
A Comparer used for comparing keys. This comparer uses the binary Unicode value of the characters.
Author:
Michael H. Kay
  • Constructor Details

    • StringComparer

      public StringComparer()
  • Method Details

    • compare

      public int compare(Object a, Object b)
      Compare two string objects using default collating
      Specified by:
      compare in class Comparer
      Returns:
      invalid input: '<'0 if ainvalid input: '<'b, 0 if a=b, >0 if a>b
      Throws:
      ClassCastException - if the objects are of the wrong type for this Comparer
    • setCaseOrder

      public Comparer setCaseOrder(int caseOrder)
      Set case order
      Overrides:
      setCaseOrder in class TextComparer
      Parameters:
      caseOrder - one of DEFAULT_CASE_ORDER, LOWERCASE_FIRST, or UPPERCASE_FIRST. Indicates whether upper case letters precede or follow lower case letters in the ordering
      Returns:
      either this or a different Comparer that will be used to perform the comparisons. This allows the TextComparer to delegate the comparison to a Comparer dedicated to a specific case order.