Package com.ericsson.otp.erlang

Class OtpErlangLong

java.lang.Object
com.ericsson.otp.erlang.OtpErlangObject
com.ericsson.otp.erlang.OtpErlangLong
All Implemented Interfaces:
Serializable, Cloneable
Direct Known Subclasses:
OtpErlangByte, OtpErlangChar, OtpErlangInt, OtpErlangShort, OtpErlangUInt, OtpErlangUShort
public class OtpErlangLong extends OtpErlangObject
Provides a Java representation of Erlang integral types. Erlang does not distinguish between different integral types, however this class and its subclasses OtpErlangByte, OtpErlangChar, OtpErlangInt , and OtpErlangShort attempt to map the Erlang types onto the various Java integral types. Two additional classes, OtpErlangUInt and OtpErlangUShort are provided for Corba compatibility. See the documentation for IC for more information.
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class com.ericsson.otp.erlang.OtpErlangObject

    OtpErlangObject.Hash

  • Field Summary

    Fields inherited from class com.ericsson.otp.erlang.OtpErlangObject

    hashCodeValue

  • Constructor Summary

    Constructors
    Constructor
    Description
    OtpErlangLong(long l)
    Create an Erlang integer from the given value.
    OtpErlangLong(OtpInputStream buf)
    Create an Erlang integer from a stream containing an integer encoded in Erlang external format.
    OtpErlangLong(BigInteger v)
    Create an Erlang integer from the given value.

  • Method Summary

    Modifier and Type
    Method
    Description
    BigInteger
    bigIntegerValue()
    Get this number as a BigInteger.
    int
    bitLength()
    Returns the number of bits in the minimal two's-complement representation of this BigInteger, excluding a sign bit.
    byte
    byteValue()
    Get this number as a byte.
    char
    charValue()
    Get this number as a char.
    protected int
    doHashCode()
     
    void
    encode(OtpOutputStream buf)
    Convert this number to the equivalent Erlang external representation.
    boolean
    equals(Object o)
    Determine if two numbers are equal.
    int
    intValue()
    Get this number as an int.
    boolean
    isLong()
    Determine if this value can be represented as a long without truncation.
    boolean
    isULong()
    Determine if this value can be represented as an unsigned long without truncation, that is if the value is non-negative and its bit pattern completely fits in a long.
    long
    longValue()
    Get this number as a long, or rather truncate all but the least significant 64 bits from the 2's complement representation of this number and return them as a long.
    short
    shortValue()
    Get this number as a short.
    int
    signum()
    Return the signum function of this object.
    String
    toString()
    Get the string representation of this number.
    int
    uIntValue()
    Get this number as a non-negative int.
    short
    uShortValue()
    Get this number as a non-negative short.

    Methods inherited from class com.ericsson.otp.erlang.OtpErlangObject

    bind, clone, decode, hashCode, match

    Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • OtpErlangLong

      public OtpErlangLong(long l)
      Create an Erlang integer from the given value.
      Parameters:
      l - the long value to use.

    • OtpErlangLong

      public OtpErlangLong(BigInteger v)
      Create an Erlang integer from the given value.
      Parameters:
      v - the big integer value to use.

    • OtpErlangLong

      public OtpErlangLong(OtpInputStream buf) throws OtpErlangDecodeException
      Create an Erlang integer from a stream containing an integer encoded in Erlang external format.
      Parameters:
      buf - the stream containing the encoded value.
      Throws:
      OtpErlangDecodeException - if the buffer does not contain a valid external representation of an Erlang integer.

  • Method Details

    • bigIntegerValue

      public BigInteger bigIntegerValue()
      Get this number as a BigInteger.
      Returns:
      the value of this number, as a BigInteger.

    • longValue

      public long longValue()
      Get this number as a long, or rather truncate all but the least significant 64 bits from the 2's complement representation of this number and return them as a long.
      Returns:
      the value of this number, as a long.

    • isLong

      public boolean isLong()
      Determine if this value can be represented as a long without truncation.
      Returns:
      true if this value fits in a long, false otherwise.

    • isULong

      public boolean isULong()
      Determine if this value can be represented as an unsigned long without truncation, that is if the value is non-negative and its bit pattern completely fits in a long.
      Returns:
      true if this value is non-negative and fits in a long false otherwise.

    • bitLength

      public int bitLength()
      Returns the number of bits in the minimal two's-complement representation of this BigInteger, excluding a sign bit.
      Returns:
      number of bits in the minimal two's-complement representation of this BigInteger, excluding a sign bit.

    • signum

      public int signum()
      Return the signum function of this object.
      Returns:
      -1, 0 or 1 as the value is negative, zero or positive.

    • intValue

      public int intValue() throws OtpErlangRangeException
      Get this number as an int.
      Returns:
      the value of this number, as an int.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as an int.

    • uIntValue

      public int uIntValue() throws OtpErlangRangeException
      Get this number as a non-negative int.
      Returns:
      the value of this number, as an int.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as an int, or if the value is negative.

    • shortValue

      public short shortValue() throws OtpErlangRangeException
      Get this number as a short.
      Returns:
      the value of this number, as a short.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as a short.

    • uShortValue

      public short uShortValue() throws OtpErlangRangeException
      Get this number as a non-negative short.
      Returns:
      the value of this number, as a short.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as a short, or if the value is negative.

    • charValue

      public char charValue() throws OtpErlangRangeException
      Get this number as a char.
      Returns:
      the char value of this number.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as a char.

    • byteValue

      public byte byteValue() throws OtpErlangRangeException
      Get this number as a byte.
      Returns:
      the byte value of this number.
      Throws:
      OtpErlangRangeException - if the value is too large to be represented as a byte.

    • toString

      public String toString()
      Get the string representation of this number.
      Specified by:
      toString in class OtpErlangObject
      Returns:
      the string representation of this number.

    • encode

      public void encode(OtpOutputStream buf)
      Convert this number to the equivalent Erlang external representation.
      Specified by:
      encode in class OtpErlangObject
      Parameters:
      buf - an output stream to which the encoded number should be written.

    • equals

      public boolean equals(Object o)
      Determine if two numbers are equal. Numbers are equal if they contain the same value.
      Specified by:
      equals in class OtpErlangObject
      Parameters:
      o - the number to compare to.
      Returns:
      true if the numbers have the same value.

    • doHashCode

      protected int doHashCode()
      Overrides:
      doHashCode in class OtpErlangObject