Package org.jboss.logging.processor.util

Class Objects.HashCodeBuilder

  • Enclosing class:
    Objects
    public static class Objects.HashCodeBuilder
extends java.lang.Object
    A builder to simplify the building of hash codes.

    • Method Detail

      • builder

        public static Objects.HashCodeBuilder builder()
        Creates a new builder with 31 as the seed.
        Returns:
        the new builder.

      • builder

        public static Objects.HashCodeBuilder builder​(int seed)
        Creates a new builder with the seed that is passed.
        Parameters:
        seed - the seed for the hash code.
        Returns:
        the new builder.

      • add

        public Objects.HashCodeBuilder add​(boolean b)
        Adds the hash code of a boolean to the final hash code value.
        Parameters:
        b - a boolean to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(char c)
        Adds the hash code of a character to the final hash code value.
        Parameters:
        c - a character to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(int i)
        Adds the hash code of an integer to the final hash code value.

        Both shorts and bytes use this method to add the hash value.

        Parameters:
        i - an integer to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(long lng)
        Adds the hash code of a long to the final hash code value.
        Parameters:
        lng - a long to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(float flt)
        Adds the hash code of a float to the final hash code value.
        Parameters:
        flt - a float to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(double dbl)
        Adds the hash code of a double to the final hash code value.
        Parameters:
        dbl - a double to calculate the hash code of.
        Returns:
        the current builder.

      • add

        public Objects.HashCodeBuilder add​(java.lang.Object obj)
        Adds the hash code of an object to the final hash code value.

        If the obj is null the hash code is calculated using add(int) with a value of 0. Otherwise the hash code is calculated using add(int) with a value of obj.hashCode(), unless the object is an array. In this case the array is processed and this is recursively invoked.

        Parameters:
        obj - the object to calculate the hash code of.
        Returns:
        the current builder.

      • toHashCode

        public int toHashCode()
        Returns the calculated hash code.
        Returns:
        the calculated hash code.

      • hashCode

        public int hashCode()
        This method overrides the default Object#hashCode(), but does not return a proper hash of this builder. Returns the value of toHashCode() to insure the incorrect hash code is not returned by mistake.
        Overrides:
        hashCode in class java.lang.Object
        Returns:
        the value of toHashCode().

      • equals

        public boolean equals​(java.lang.Object obj)
        Should never be invoked on this object.
        Overrides:
        equals in class java.lang.Object
        Parameters:
        obj - an object.