/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009 Sun Microsystems, Inc.
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*/
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package org.opends.sdk.ldif;
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import java.io.Closeable;
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import java.io.Flushable;
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import java.io.IOException;
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import org.opends.sdk.Entry;
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/**
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* An interface for writing entries to a data source, typically an LDIF
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* file.
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* <p>
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* TODO: FilteredChangeRecordWriter
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*/
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public interface EntryWriter extends Closeable, Flushable
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{
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/**
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* Closes this entry writer, flushing it first. Closing a previously
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* closed entry writer has no effect.
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*
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* @throws IOException
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* If an unexpected IO error occurred while closing.
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*/
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void close() throws IOException;
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/**
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* Flushes this entry writer so that any buffered data is written
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* immediately to underlying stream, flushing the stream if it is also
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* {@code Flushable}.
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* <p>
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* If the intended destination of this stream is an abstraction
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* provided by the underlying operating system, for example a file,
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* then flushing the stream guarantees only that bytes previously
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* written to the stream are passed to the operating system for
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* writing; it does not guarantee that they are actually written to a
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* physical device such as a disk drive.
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*
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* @throws IOException
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* If an unexpected IO error occurred while flushing.
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*/
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void flush() throws IOException;
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/**
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* Writes a comment.
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*
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* @param comment
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* The {@code CharSequence} to be written as a comment.
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* @return A reference to this entry writer.
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* @throws IOException
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* If an unexpected IO error occurred while writing the
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* comment.
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* @throws NullPointerException
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* If {@code comment} was {@code null}.
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*/
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EntryWriter writeComment(CharSequence comment) throws IOException,
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NullPointerException;
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/**
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* Writes an entry.
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*
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* @param entry
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* The {@code Entry} to be written.
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* @return A reference to this entry writer.
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* @throws IOException
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* If an unexpected IO error occurred while writing the
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* entry.
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* @throws NullPointerException
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* If {@code entry} was {@code null}.
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*/
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EntryWriter writeEntry(Entry entry) throws IOException,
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NullPointerException;
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}
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