Index: lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsFormat.java
===================================================================
--- lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsFormat.java	(révision 1417231)
+++ lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsFormat.java	(copie de travail)
@@ -93,13 +93,13 @@
   @Override
   public StoredFieldsReader fieldsReader(Directory directory, SegmentInfo si,
       FieldInfos fn, IOContext context) throws IOException {
-    return new CompressingStoredFieldsReader(directory, si, fn, context, formatName, compressionMode);
+    return new CompressingStoredFieldsReader(directory, si, "", fn, context, formatName, compressionMode);
   }
 
   @Override
   public StoredFieldsWriter fieldsWriter(Directory directory, SegmentInfo si,
       IOContext context) throws IOException {
-    return new CompressingStoredFieldsWriter(directory, si, context,
+    return new CompressingStoredFieldsWriter(directory, si, "", context,
         formatName, compressionMode, chunkSize);
   }
 
Index: lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsReader.java
===================================================================
--- lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsReader.java	(révision 1417231)
+++ lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsReader.java	(copie de travail)
@@ -54,7 +54,11 @@
 import org.apache.lucene.util.IOUtils;
 import org.apache.lucene.util.packed.PackedInts;
 
-final class CompressingStoredFieldsReader extends StoredFieldsReader {
+/**
+ * {@link StoredFieldsReader} impl for {@link CompressingStoredFieldsFormat}.
+ * @lucene.experimental
+ */
+public final class CompressingStoredFieldsReader extends StoredFieldsReader {
 
   private final FieldInfos fieldInfos;
   private final CompressingStoredFieldsIndexReader indexReader;
@@ -79,7 +83,8 @@
     this.closed = false;
   }
 
-  public CompressingStoredFieldsReader( Directory d, SegmentInfo si, FieldInfos fn,
+  /** Sole constructor. */
+  public CompressingStoredFieldsReader(Directory d, SegmentInfo si, String segmentSuffix, FieldInfos fn,
       IOContext context, String formatName, CompressionMode compressionMode) throws IOException {
     this.compressionMode = compressionMode;
     final String segment = si.name;
@@ -88,8 +93,8 @@
     numDocs = si.getDocCount();
     IndexInput indexStream = null;
     try {
-      fieldsStream = d.openInput(IndexFileNames.segmentFileName(segment, "", FIELDS_EXTENSION), context);
-      final String indexStreamFN = IndexFileNames.segmentFileName(segment, "", FIELDS_INDEX_EXTENSION);
+      fieldsStream = d.openInput(IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_EXTENSION), context);
+      final String indexStreamFN = IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_INDEX_EXTENSION);
       indexStream = d.openInput(indexStreamFN, context);
 
       final String codecNameIdx = formatName + CODEC_SFX_IDX;
@@ -123,6 +128,9 @@
     }
   }
 
+  /** 
+   * Close the underlying {@link IndexInput}s.
+   */
   @Override
   public void close() throws IOException {
     if (!closed) {
Index: lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsWriter.java
===================================================================
--- lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsWriter.java	(révision 1417231)
+++ lucene/core/src/java/org/apache/lucene/codecs/compressing/CompressingStoredFieldsWriter.java	(copie de travail)
@@ -47,7 +47,11 @@
 import org.apache.lucene.util.IOUtils;
 import org.apache.lucene.util.packed.PackedInts;
 
-final class CompressingStoredFieldsWriter extends StoredFieldsWriter {
+/**
+ * {@link StoredFieldsWriter} impl for {@link CompressingStoredFieldsFormat}.
+ * @lucene.experimental
+ */
+public final class CompressingStoredFieldsWriter extends StoredFieldsWriter {
 
   static final int         STRING = 0x00;
   static final int       BYTE_ARR = 0x01;
@@ -79,7 +83,8 @@
   private int docBase; // doc ID at the beginning of the chunk
   private int numBufferedDocs; // docBase + numBufferedDocs == current doc ID
 
-  public CompressingStoredFieldsWriter(Directory directory, SegmentInfo si, IOContext context,
+  /** Sole constructor. */
+  public CompressingStoredFieldsWriter(Directory directory, SegmentInfo si, String segmentSuffix, IOContext context,
       String formatName, CompressionMode compressionMode, int chunkSize) throws IOException {
     assert directory != null;
     this.directory = directory;
@@ -94,9 +99,9 @@
     this.numBufferedDocs = 0;
 
     boolean success = false;
-    IndexOutput indexStream = directory.createOutput(IndexFileNames.segmentFileName(segment, "", FIELDS_INDEX_EXTENSION), context);
+    IndexOutput indexStream = directory.createOutput(IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_INDEX_EXTENSION), context);
     try {
-      fieldsStream = directory.createOutput(IndexFileNames.segmentFileName(segment, "", FIELDS_EXTENSION), context);
+      fieldsStream = directory.createOutput(IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_EXTENSION), context);
 
       final String codecNameIdx = formatName + CODEC_SFX_IDX;
       final String codecNameDat = formatName + CODEC_SFX_DAT;