Class CharMatcher.FastMatcher

java.lang.Object
com.google.common.base.CharMatcher
com.google.common.base.CharMatcher.FastMatcher
All Implemented Interfaces:
Predicate<Character>, Predicate<Character>
Direct Known Subclasses:
CharMatcher.InRange, CharMatcher.Is, CharMatcher.IsEither, CharMatcher.IsNot, CharMatcher.NamedFastMatcher
Enclosing class:
CharMatcher

abstract static class CharMatcher.FastMatcher extends CharMatcher
A matcher for which precomputation will not yield any significant benefit.
  • Constructor Details

    • FastMatcher

      FastMatcher()
  • Method Details

    • precomputed

      public final CharMatcher precomputed()
      Description copied from class: CharMatcher
      Returns a char matcher functionally equivalent to this one, but which may be faster to query than the original; your mileage may vary. Precomputation takes time and is likely to be worthwhile only if the precomputed matcher is queried many thousands of times.

      This method has no effect (returns this) when called in GWT: it's unclear whether a precomputed matcher is faster, but it certainly consumes more memory, which doesn't seem like a worthwhile tradeoff in a browser.

      Overrides:
      precomputed in class CharMatcher
    • negate

      public CharMatcher negate()
      Description copied from class: CharMatcher
      Returns a matcher that matches any character not matched by this matcher.
      Specified by:
      negate in interface Predicate<Character>
      Overrides:
      negate in class CharMatcher