TreeUi: isAlwaysLeaf tested

java/java-impl/src/com/intellij/ide/favoritesTreeView/smartPointerPsiNodes/ClassSmartPointerNode.java

@@ -66,6 +66,10 @@ public class ClassSmartPointerNode extends BaseSmartPointerPsiNode<SmartPsiEleme
     return treeNodes;
   }
 
+  public boolean isAlwaysLeaf() {
+    return !getSettings().isShowMembers();
+  }
+  
   public void updateImpl(PresentationData data) {
     final PsiClass aClass = getPsiClass();
     if (aClass != null) {

java/java-impl/src/com/intellij/ide/projectView/impl/nodes/ClassTreeNode.java

@@ -63,6 +63,10 @@ public class ClassTreeNode extends BasePsiMemberNode<PsiClass>{
     return treeNodes;
   }
 
+  public boolean isAlwaysLeaf() {
+    return !getSettings().isShowMembers();
+  }
+
   public void updateImpl(PresentationData data) {
     final PsiClass aClass = getValue();
     if (aClass != null) {

java/java-impl/src/com/intellij/ide/projectView/impl/nodes/PsiFieldNode.java

@@ -50,6 +50,10 @@ public class PsiFieldNode extends BasePsiMemberNode<PsiField>{
     return 70;
   }
 
+  public boolean isAlwaysLeaf() {
+    return true;
+  }
+
   @Override
   public String getTitle() {
     final PsiField field = getValue();

java/java-impl/src/com/intellij/ide/projectView/impl/nodes/PsiMethodNode.java

@@ -48,6 +48,10 @@ public class PsiMethodNode extends BasePsiMemberNode<PsiMethod>{
     data.setPresentableText(name);
   }
 
+  public boolean isAlwaysLeaf() {
+    return true;
+  }
+
   public boolean isConstructor() {
     final PsiMethod psiMethod = getValue();
     return psiMethod != null && psiMethod.isConstructor();