Index: src/java/org/apache/lucene/index/SegmentInfo.java
===================================================================
--- src/java/org/apache/lucene/index/SegmentInfo.java	(revision 793769)
+++ src/java/org/apache/lucene/index/SegmentInfo.java	(working copy)
@@ -28,7 +28,11 @@
 import java.util.ArrayList;
 import java.util.Collections;
 
-final class SegmentInfo {
+/**
+ * Information about a segment such as it's name, directory, and files related
+ * to the segment.
+ */
+public final class SegmentInfo {
 
   static final int NO = -1;          // e.g. no norms; no deletes;
   static final int YES = 1;          // e.g. have norms; have deletes;
@@ -150,7 +154,7 @@
   }
 
   // returns Map<String, String>
-  Map getDiagnostics() {
+  public Map getDiagnostics() {
     return diagnostics;
   }
 
@@ -251,7 +255,7 @@
 
   /** Returns total size in bytes of all of files used by
    *  this segment. */
-  long sizeInBytes() throws IOException {
+  public long sizeInBytes() throws IOException {
     if (sizeInBytes == -1) {
       List files = files();
       final int size = files.size();
@@ -267,7 +271,7 @@
     return sizeInBytes;
   }
 
-  boolean hasDeletions()
+  public boolean hasDeletions()
     throws IOException {
     // Cases:
     //
@@ -325,7 +329,7 @@
     return si;
   }
 
-  String getDelFileName() {
+  public String getDelFileName() {
     if (delGen == NO) {
       // In this case we know there is no deletion filename
       // against this segment
@@ -341,7 +345,7 @@
    *
    * @param fieldNumber the field index to check
    */
-  boolean hasSeparateNorms(int fieldNumber)
+  public boolean hasSeparateNorms(int fieldNumber)
     throws IOException {
     if ((normGen == null && preLockless) || (normGen != null && normGen[fieldNumber] == CHECK_DIR)) {
       // Must fallback to directory file exists check:
@@ -357,7 +361,7 @@
   /**
    * Returns true if any fields in this segment have separate norms.
    */
-  boolean hasSeparateNorms()
+  public boolean hasSeparateNorms()
     throws IOException {
     if (normGen == null) {
       if (!preLockless) {
@@ -424,7 +428,7 @@
    *
    * @param number field index
    */
-  String getNormFileName(int number) throws IOException {
+  public String getNormFileName(int number) throws IOException {
     String prefix;
 
     long gen;
@@ -470,7 +474,7 @@
    * Returns true if this segment is stored as a compound
    * file; else, false.
    */
-  boolean getUseCompoundFile() throws IOException {
+  public boolean getUseCompoundFile() throws IOException {
     if (isCompoundFile == NO) {
       return false;
     } else if (isCompoundFile == YES) {
@@ -480,7 +484,7 @@
     }
   }
 
-  int getDelCount() throws IOException {
+  public int getDelCount() throws IOException {
     if (delCount == -1) {
       if (hasDeletions()) {
         final String delFileName = getDelFileName();
@@ -510,7 +514,7 @@
     clearFiles();
   }
   
-  String getDocStoreSegment() {
+  public String getDocStoreSegment() {
     return docStoreSegment;
   }
   
Index: src/java/org/apache/lucene/index/SegmentInfos.java
===================================================================
--- src/java/org/apache/lucene/index/SegmentInfos.java	(revision 793769)
+++ src/java/org/apache/lucene/index/SegmentInfos.java	(working copy)
@@ -34,7 +34,11 @@
 import java.util.HashMap;
 import java.util.Map;
 
-final class SegmentInfos extends Vector {
+/**
+ * A collection of segmentInfo objects with methods for operating on
+ * those segments in relation to the file system.
+ */
+public final class SegmentInfos extends Vector {
 
   /** The file format version, a negative number. */
   /* Works since counter, the old 1st entry, is always >= 0 */
@@ -767,7 +771,7 @@
     version = other.version;
   }
 
-  public final void rollbackCommit(Directory dir) throws IOException {
+  final void rollbackCommit(Directory dir) throws IOException {
     if (pendingSegnOutput != null) {
       try {
         pendingSegnOutput.close();
@@ -796,7 +800,7 @@
    *  end, so that it is not visible to readers.  Once this
    *  is called you must call {@link #finishCommit} to complete
    *  the commit or {@link #rollbackCommit} to abort it. */
-  public final void prepareCommit(Directory dir) throws IOException {
+  final void prepareCommit(Directory dir) throws IOException {
     if (pendingSegnOutput != null)
       throw new IllegalStateException("prepareCommit was already called");
     write(dir);
@@ -822,7 +826,7 @@
     return files;
   }
 
-  public final void finishCommit(Directory dir) throws IOException {
+  final void finishCommit(Directory dir) throws IOException {
     if (pendingSegnOutput == null)
       throw new IllegalStateException("prepareCommit was not called");
     boolean success = false;
@@ -882,7 +886,7 @@
 
   /** Writes & syncs to the Directory dir, taking care to
    *  remove the segments file on exception */
-  public final void commit(Directory dir) throws IOException {
+  final void commit(Directory dir) throws IOException {
     prepareCommit(dir);
     finishCommit(dir);
   }
@@ -906,7 +910,7 @@
     return userData;
   }
 
-  public void setUserData(Map data) {
+  void setUserData(Map data) {
     if (data == null) {
       userData = Collections.EMPTY_MAP;
     } else {