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authorJohn Arthorne2012-05-01 09:14:33 -0400
committerJohn Arthorne2012-05-01 09:14:33 -0400
commit7d8429b99bb74220947c2684a96ddfed9c2d58ea (patch)
tree57a414562256e798dab7a41a946dccf970470ca4
parentcbf14048c0741b8fb2fabf0eb8574deabe8d5062 (diff)
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Added comments to comparator classesv20120501-1314
-rw-r--r--bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/JarComparator.java7
-rw-r--r--bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/MD5ArtifactComparator.java7
-rw-r--r--bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/repository/tools/comparator/IArtifactComparator.java4
3 files changed, 15 insertions, 3 deletions
diff --git a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/JarComparator.java b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/JarComparator.java
index d79bc000d..8ebea0c89 100644
--- a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/JarComparator.java
+++ b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/JarComparator.java
@@ -1,5 +1,5 @@
/*******************************************************************************
- * Copyright (c) 2009, 2010 IBM Corporation and others.
+ * Copyright (c) 2009, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@@ -26,6 +26,11 @@ import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository;
import org.eclipse.equinox.p2.repository.tools.comparator.IArtifactComparator;
import org.eclipse.osgi.util.NLS;
+/**
+ * An artifact comparator that compares two JAR files. Class files are disassembled
+ * and compared for equivalence, properties and manifest files are compared as such,
+ * all other files are compared byte-for-byte.
+ */
public class JarComparator implements IArtifactComparator {
private static class FeatureEntryWrapper {
diff --git a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/MD5ArtifactComparator.java b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/MD5ArtifactComparator.java
index 44e34711c..86d5ddf54 100644
--- a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/MD5ArtifactComparator.java
+++ b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/MD5ArtifactComparator.java
@@ -1,5 +1,5 @@
/*******************************************************************************
- * Copyright (c) 2008, 2010 IBM Corporation and others.
+ * Copyright (c) 2008, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@@ -19,6 +19,11 @@ import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository;
import org.eclipse.equinox.p2.repository.tools.comparator.IArtifactComparator;
import org.eclipse.osgi.util.NLS;
+/**
+ * A comparator that compares two artifacts by checking the MD5 checksum
+ * recorded in the artifact descriptor. This comparator doesn't actually compute MD5
+ * checksums directly.
+ */
public class MD5ArtifactComparator implements IArtifactComparator {
public static String MD5_COMPARATOR_ID = "org.eclipse.equinox.artifact.md5.comparator"; //$NON-NLS-1$
diff --git a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/repository/tools/comparator/IArtifactComparator.java b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/repository/tools/comparator/IArtifactComparator.java
index f80091769..0eb814d33 100644
--- a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/repository/tools/comparator/IArtifactComparator.java
+++ b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/repository/tools/comparator/IArtifactComparator.java
@@ -1,5 +1,5 @@
/*******************************************************************************
- * Copyright (c) 2008, 2010 IBM Corporation and others.
+ * Copyright (c) 2008, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@@ -16,6 +16,8 @@ import org.eclipse.equinox.p2.repository.artifact.IArtifactDescriptor;
import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository;
/**
+ * A comparator compares two artifacts for equivalence. The exact method
+ * used to compare the artifacts depends on the comparator implementation used.
* @since 2.0
*/
public interface IArtifactComparator {

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