Package liquibase.change

Class CheckSum

java.lang.Object
liquibase.change.CheckSum
public final class CheckSum extends Object
CheckSums are used by liquibase to determine if a Change has been modified since it was originally ran. CheckSums can be computed on either a String or an InputStream. The CheckSum contains a version number which can be used to determine whether the algorithm for computing a storedCheckSum has changed since the last time it was computed. If the algorithm changes, we cannot rely on the storedCheckSum value.

It is not up to this class to determine what should be storedCheckSum-ed, it simply hashes what is passed to it.

  • Method Details

    • parse

      public static CheckSum parse(String checksumValue)
      Parse the given storedCheckSum string value and return a new CheckSum object.

    • getCurrentVersion

      @Deprecated public static int getCurrentVersion()
      Deprecated.
      Use ChecksumVersion.latest() instead
      Return the current CheckSum algorithm version.

    • compute

      public static CheckSum compute(String valueToChecksum)
      Compute a storedCheckSum of the given string.

    • compute

      public static CheckSum compute(InputStream stream, boolean standardizeLineEndings)
      Compute a CheckSum of the given data stream (no normalization of line endings!)

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object