1 files changed, 48 insertions, 0 deletions
diff --git a/Firebase/Database/Core/Utilities/FTree.h b/Firebase/Database/Core/Utilities/FTree.h
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index 0000000..8528526
--- /dev/null
+++ b/Firebase/Database/Core/Utilities/FTree.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import <Foundation/Foundation.h>
+#import "FTreeNode.h"
+#import "FPath.h"
+
+@interface FTree : NSObject
+
+- (id)init;
+- (id)initWithName:(NSString*)aName withParent:(FTree *)aParent withNode:(FTreeNode *)aNode;
+
+- (FTree *) subTree:(FPath*)path;
+- (id)getValue;
+- (void)setValue:(id)value;
+- (void) clear;
+- (BOOL) hasChildren;
+- (BOOL) isEmpty;
+- (void) forEachChildMutationSafe:(void (^)(FTree *))action;
+- (void) forEachChild:(void (^)(FTree *))action;
+- (void) forEachDescendant:(void (^)(FTree *))action;
+- (void) forEachDescendant:(void (^)(FTree *))action includeSelf:(BOOL)incSelf childrenFirst:(BOOL)childFirst;
+- (BOOL) forEachAncestor:(BOOL (^)(FTree *))action;
+- (BOOL) forEachAncestor:(BOOL (^)(FTree *))action includeSelf:(BOOL)incSelf;
+- (void) forEachImmediateDescendantWithValue:(void (^)(FTree *))action;
+- (BOOL) valueExistsAtOrAbove:(FPath *)path;
+- (FPath *)path;
+- (void) updateParents;
+- (void) updateChild:(NSString*)childName withNode:(FTree *)child;
+
+@property (nonatomic, strong) NSString* name;
+@property (nonatomic, strong) FTree* parent;
+@property (nonatomic, strong) FTreeNode* node;
+
+@end