### Eclipse Workspace Patch 1.0
#P org.eclipse.equinox.p2.ui
Index: META-INF/MANIFEST.MF
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.ui/META-INF/MANIFEST.MF,v
retrieving revision 1.25
diff -u -r1.25 MANIFEST.MF
--- META-INF/MANIFEST.MF	25 Apr 2008 21:12:08 -0000	1.25
+++ META-INF/MANIFEST.MF	14 May 2008 21:41:41 -0000
@@ -7,6 +7,7 @@
 Bundle-Version: 1.0.0.qualifier
 Bundle-Activator: org.eclipse.equinox.internal.p2.ui.ProvUIActivator
 Import-Package: org.eclipse.equinox.internal.p2.core.helpers,
+ org.eclipse.equinox.internal.p2.metadata,
  org.eclipse.equinox.internal.p2.rollback,
  org.eclipse.equinox.internal.provisional.configurator,
  org.eclipse.equinox.internal.provisional.p2.artifact.repository,
Index: src/org/eclipse/equinox/internal/provisional/p2/ui/query/IUPropertyUtils.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/provisional/p2/ui/query/IUPropertyUtils.java,v
retrieving revision 1.4
diff -u -r1.4 IUPropertyUtils.java
--- src/org/eclipse/equinox/internal/provisional/p2/ui/query/IUPropertyUtils.java	13 May 2008 23:25:17 -0000	1.4
+++ src/org/eclipse/equinox/internal/provisional/p2/ui/query/IUPropertyUtils.java	14 May 2008 21:41:41 -0000
@@ -13,6 +13,7 @@
 import java.net.URL;
 import java.util.*;
 import org.eclipse.equinox.internal.p2.core.helpers.ServiceHelper;
+import org.eclipse.equinox.internal.p2.metadata.InstallableUnit;
 import org.eclipse.equinox.internal.p2.ui.ProvUIActivator;
 import org.eclipse.equinox.internal.provisional.p2.metadata.*;
 import org.eclipse.equinox.internal.provisional.p2.metadata.query.IUPropertyQuery;
@@ -132,7 +133,7 @@
 					String localeKey = makeLocalizedKey(actualKey, (String) jter.next());
 					translation = localizationIU.getProperty(localeKey);
 					if (translation != null)
-						return translation;
+						return cacheResult(iu, localizedKey, translation);
 				}
 			}
 		}
@@ -142,10 +143,22 @@
 			String localeKey = makeLocalizedKey(actualKey, nextLocale);
 			String nextValue = iu.getProperty(localeKey);
 			if (nextValue != null)
-				return nextValue;
+				return cacheResult(iu, localizedKey, nextValue);
 		}
 
-		return actualKey;
+		return cacheResult(iu, localizedKey, actualKey);
+	}
+
+	/**
+	 * Cache the translated property value to optimize future retrieval of the same value.
+	 * Currently we just cache on the installable unit object in memory. In future
+	 * we should push support for localized property retrieval into IInstallableUnit
+	 * so we aren't required to reach around the API here.
+	 */
+	private static String cacheResult(IInstallableUnit iu, String localizedKey, String localizedValue) {
+		if (iu instanceof InstallableUnit)
+			((InstallableUnit) iu).setProperty(localizedKey, localizedValue);
+		return localizedValue;
 	}
 
 	/**
#P org.eclipse.equinox.p2.metadata
Index: META-INF/MANIFEST.MF
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.metadata/META-INF/MANIFEST.MF,v
retrieving revision 1.15
diff -u -r1.15 MANIFEST.MF
--- META-INF/MANIFEST.MF	25 Apr 2008 19:09:56 -0000	1.15
+++ META-INF/MANIFEST.MF	14 May 2008 21:41:42 -0000
@@ -11,7 +11,8 @@
    org.eclipse.equinox.p2.engine,
    org.eclipse.equinox.p2.artifact.repository,
    org.eclipse.equinox.p2.artifact.optimizers,
-   org.eclipse.equinox.p2.artifact.processors",
+   org.eclipse.equinox.p2.artifact.processors,
+   org.eclipse.equinox.p2.ui",
  org.eclipse.equinox.internal.provisional.p2.metadata;
   x-friends:="org.eclipse.equinox.p2.artifact.optimizers,
    org.eclipse.equinox.p2.artifact.processors,