com.ericsson.otp.erlang
Class OtpErlangString

java.lang.Object
  com.ericsson.otp.erlang.OtpErlangObject
      com.ericsson.otp.erlang.OtpErlangString

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class OtpErlangString
extends OtpErlangObject
implements java.io.Serializable, java.lang.Cloneable

Provides a Java representation of Erlang strings.

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

OtpErlangString(OtpErlangList list)
Create an Erlang string from a list of integers.

OtpErlangString(OtpInputStream buf)
Create an Erlang string from a stream containing a string encoded in Erlang external format.

OtpErlangString(java.lang.String str)
Create an Erlang string from the given string.

Method Summary

protected int	doHashCode()
void	encode(OtpOutputStream buf) Convert this string to the equivalent Erlang external representation.
boolean	equals(java.lang.Object o) Determine if two strings are equal.
static boolean	isValidCodePoint(int cp) Validate a code point according to Erlang definition; Unicode 3.0.
static java.lang.String	newString(byte[] bytes) Construct a String from a Latin-1 (ISO-8859-1) encoded byte array, if Latin-1 is available, otherwise use the default encoding.
static int[]	stringToCodePoints(java.lang.String s) Create Unicode code points from a String.
java.lang.String	stringValue() Get the actual string contained in this object.
java.lang.String	toString() Get the printable version of the string contained in this object.

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

clone, decode, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

OtpErlangString

public OtpErlangString(java.lang.String str)

Create an Erlang string from the given string.

OtpErlangString

public OtpErlangString(OtpErlangList list)
                throws OtpErlangException

Create an Erlang string from a list of integers.

Throws:

OtpErlangException - for non-proper and non-integer lists.

OtpErlangRangeException - if an integer in the list is not a valid Unicode code point according to Erlang.

OtpErlangString

public OtpErlangString(OtpInputStream buf)
                throws OtpErlangDecodeException

Create an Erlang string from a stream containing a string encoded in Erlang external format.

Parameters:

buf - the stream containing the encoded string.

Throws:

OtpErlangDecodeException - if the buffer does not contain a valid external representation of an Erlang string.

Method Detail

stringValue

public java.lang.String stringValue()

Get the actual string contained in this object.

Returns:

the raw string contained in this object, without regard to Erlang quoting rules.

See Also:

toString()

toString

public java.lang.String toString()

Get the printable version of the string contained in this object.

Specified by:

toString in class OtpErlangObject

Returns:

the string contained in this object, quoted.

See Also:

stringValue()

encode

public void encode(OtpOutputStream buf)

Convert this string to the equivalent Erlang external representation.

Specified by:

encode in class OtpErlangObject

Parameters:

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

equals

public boolean equals(java.lang.Object o)

Determine if two strings are equal. They are equal if they represent the same sequence of characters. This method can be used to compare OtpErlangStrings with each other and with Strings.

Specified by:

equals in class OtpErlangObject

Parameters:

o - the OtpErlangString or String to compare to.

Returns:

true if the strings consist of the same sequence of characters, false otherwise.

doHashCode

protected int doHashCode()

Overrides:

doHashCode in class OtpErlangObject

stringToCodePoints

public static int[] stringToCodePoints(java.lang.String s)

Create Unicode code points from a String.

Parameters:

s - a String to convert to an Unicode code point array

Returns:

the corresponding array of integers representing Unicode code points

isValidCodePoint

public static boolean isValidCodePoint(int cp)

Validate a code point according to Erlang definition; Unicode 3.0. That is; valid in the range U+0..U+10FFFF, but not in the range U+D800..U+DFFF (surrogat pairs), nor U+FFFE..U+FFFF (non-characters).

Parameters:

cp - the code point value to validate

Returns:

true if the code point is valid, false otherwise.

newString

public static java.lang.String newString(byte[] bytes)

Construct a String from a Latin-1 (ISO-8859-1) encoded byte array, if Latin-1 is available, otherwise use the default encoding.