Package com.ericsson.otp.erlang

Class OtpErlangDouble

java.lang.Object

com.ericsson.otp.erlang.OtpErlangObject

com.ericsson.otp.erlang.OtpErlangDouble

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

OtpErlangFloat

public class OtpErlangDouble
extends OtpErlangObject

Provides a Java representation of Erlang floats and doubles. Erlang defines only one floating point numeric type, however this class and its subclass OtpErlangFloat are used to provide representations corresponding to the Java types Double and Float.

See Also:

Serialized Form

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
OtpErlangDouble(double d)	Create an Erlang float from the given double value.
OtpErlangDouble(OtpInputStream buf)	Create an Erlang float from a stream containing a double encoded in Erlang external format.

Method Summary

Modifier and Type	Method	Description
protected int	doHashCode()
double	doubleValue()	Get the value, as a double.
void	encode(OtpOutputStream buf)	Convert this double to the equivalent Erlang external representation.
boolean	equals(java.lang.Object o)	Determine if two floats are equal.
float	floatValue()	Get the value, as a float.
java.lang.String	toString()	Get the string representation of this double.

Methods inherited from class java.lang.Object

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

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

bind, clone, decode, hashCode, match

Constructor Detail

OtpErlangDouble

public OtpErlangDouble(double d)

Create an Erlang float from the given double value.

OtpErlangDouble

public OtpErlangDouble(OtpInputStream buf)
                throws OtpErlangDecodeException

Create an Erlang float from a stream containing a double 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 float.

Method Detail

doubleValue

public double doubleValue()

Get the value, as a double.

Returns:

the value of this object, as a double.

floatValue

public float floatValue()
                 throws OtpErlangRangeException

Get the value, as a float.

Returns:

the value of this object, as a float.

Throws:

OtpErlangRangeException - if the value cannot be represented as a float.

toString

public java.lang.String toString()

Get the string representation of this double.

Specified by:

toString in class OtpErlangObject

Returns:

the string representation of this double.

encode

public void encode(OtpOutputStream buf)

Convert this double to the equivalent Erlang external representation.

Specified by:

encode in class OtpErlangObject

Parameters:

buf - an output stream to which the encoded value should be written.

equals

public boolean equals(java.lang.Object o)

Determine if two floats are equal. Floats are equal if they contain the same value.

Specified by:

equals in class OtpErlangObject

Parameters:

o - the float to compare to.

Returns:

true if the floats have the same value.

doHashCode

protected int doHashCode()

Overrides:

doHashCode in class OtpErlangObject