- /*
- * @(#)FilterReader.java 1.17 03/12/19
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package java.io;
-
-
- /**
- * Abstract class for reading filtered character streams.
- * The abstract class <code>FilterReader</code> itself
- * provides default methods that pass all requests to
- * the contained stream. Subclasses of <code>FilterReader</code>
- * should override some of these methods and may also provide
- * additional methods and fields.
- *
- * @version 1.17, 03/12/19
- * @author Mark Reinhold
- * @since JDK1.1
- */
-
- public abstract class FilterReader extends Reader {
-
- /**
- * The underlying character-input stream.
- */
- protected Reader in;
-
- /**
- * Create a new filtered reader.
- *
- * @param in a Reader object providing the underlying stream.
- * @throws NullPointerException if <code>in</code> is <code>null</code>
- */
- protected FilterReader(Reader in) {
- super(in);
- this.in = in;
- }
-
- /**
- * Read a single character.
- *
- * @exception IOException If an I/O error occurs
- */
- public int read() throws IOException {
- return in.read();
- }
-
- /**
- * Read characters into a portion of an array.
- *
- * @exception IOException If an I/O error occurs
- */
- public int read(char cbuf[], int off, int len) throws IOException {
- return in.read(cbuf, off, len);
- }
-
- /**
- * Skip characters.
- *
- * @exception IOException If an I/O error occurs
- */
- public long skip(long n) throws IOException {
- return in.skip(n);
- }
-
- /**
- * Tell whether this stream is ready to be read.
- *
- * @exception IOException If an I/O error occurs
- */
- public boolean ready() throws IOException {
- return in.ready();
- }
-
- /**
- * Tell whether this stream supports the mark() operation.
- */
- public boolean markSupported() {
- return in.markSupported();
- }
-
- /**
- * Mark the present position in the stream.
- *
- * @exception IOException If an I/O error occurs
- */
- public void mark(int readAheadLimit) throws IOException {
- in.mark(readAheadLimit);
- }
-
- /**
- * Reset the stream.
- *
- * @exception IOException If an I/O error occurs
- */
- public void reset() throws IOException {
- in.reset();
- }
-
- /**
- * Close the stream.
- *
- * @exception IOException If an I/O error occurs
- */
- public void close() throws IOException {
- in.close();
- }
-
- }