It's not just about renames. If you put the @Override annotation, you're telling the compiler that you think you're overriding something. If that method isn't there (you fat-fingered the name or something), you'll get an error.
On Wed, Mar 7, 2012 at 6:47 PM, Emmanuel Bourg <ebo...@apache.org> wrote: > I think I never understood the purpose of @Override on the JDK methods. I > thought @Override was mainly useful to prevent a method renamed in a super > class to leave non renamed methods in the subclasses. But for methods like > toString() or read() this is never going to happen. So in this case I think > @Override adds unnecessary noise. > > Emmanuel Bourg > > > > Le 08/03/2012 00:34, s...@apache.org a écrit : >> >> Author: sebb >> Date: Wed Mar 7 23:34:39 2012 >> New Revision: 1298215 >> >> URL: http://svn.apache.org/viewvc?rev=1298215&view=rev >> Log: >> @Override + Javadoc >> >> Modified: >> >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/CharBuffer.java >> >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/ExtendedBufferedReader.java >> >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java >> >> Modified: >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/CharBuffer.java >> URL: >> http://svn.apache.org/viewvc/commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/CharBuffer.java?rev=1298215&r1=1298214&r2=1298215&view=diff >> >> ============================================================================== >> --- >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/CharBuffer.java >> (original) >> +++ >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/CharBuffer.java >> Wed Mar 7 23:34:39 2012 >> @@ -184,8 +184,9 @@ class CharBuffer { >> * Converts the contents of the buffer into a StringBuffer. >> * This method involves copying the new data once! >> * >> - * @return >> + * @return the contents of the character buffer as a String >> */ >> + @Override >> public String toString() { >> return new String(c, 0, length); >> } >> >> Modified: >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/ExtendedBufferedReader.java >> URL: >> http://svn.apache.org/viewvc/commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/ExtendedBufferedReader.java?rev=1298215&r1=1298214&r2=1298215&view=diff >> >> ============================================================================== >> --- >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/ExtendedBufferedReader.java >> (original) >> +++ >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/ExtendedBufferedReader.java >> Wed Mar 7 23:34:39 2012 >> @@ -65,6 +65,7 @@ class ExtendedBufferedReader extends Buf >> * >> * @return the next char or END_OF_STREAM if end of stream has been >> reached. >> */ >> + @Override >> public int read() throws IOException { >> // initialize the lookahead >> if (lookaheadChar == UNDEFINED) { >> @@ -103,6 +104,7 @@ class ExtendedBufferedReader extends Buf >> * >> * @return nof chars actually read or END_OF_STREAM >> */ >> + @Override >> public int read(char[] buf, int off, int len) throws IOException { >> // do not claim if len == 0 >> if (len == 0) { >> @@ -145,6 +147,7 @@ class ExtendedBufferedReader extends Buf >> * including any line-termination characters, or null >> * if the end of the stream has been reached >> */ >> + @Override >> public String readLine() throws IOException { >> >> if (lookaheadChar == UNDEFINED) { >> @@ -186,6 +189,7 @@ class ExtendedBufferedReader extends Buf >> /** >> * Unsupported >> */ >> + @Override >> public long skip(long n) throws IllegalArgumentException, IOException >> { >> throw new UnsupportedOperationException("CSV has no reason to >> implement this"); >> } >> @@ -216,8 +220,10 @@ class ExtendedBufferedReader extends Buf >> } >> >> /** >> - * Unsupported >> + * Unsupported. >> + * @throws UnsupportedOperationException if invoked >> */ >> + @Override >> public boolean markSupported() { >> throw new UnsupportedOperationException("CSV has no reason to >> implement this"); >> } >> >> Modified: >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java >> URL: >> http://svn.apache.org/viewvc/commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java?rev=1298215&r1=1298214&r2=1298215&view=diff >> >> ============================================================================== >> --- >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java >> (original) >> +++ >> commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java >> Wed Mar 7 23:34:39 2012 >> @@ -38,6 +38,7 @@ class UnicodeUnescapeReader extends Read >> this.reader = new PushbackReader(reader, sequence.length); >> } >> >> + @Override >> public int read(char[] cbuf, int off, int len) throws IOException { >> int count = 0; >> for (int i = 0; i< len; i++) { >> @@ -75,6 +76,7 @@ class UnicodeUnescapeReader extends Read >> return ('0'<= c&& c<= '9') || ('a'<= c&& c<= 'f') || ('A'<= c&& >> c<= 'F'); >> } >> >> + @Override >> public void close() throws IOException { >> if (reader != null) { >> reader.close(); >> >> > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
