move ObservableXXXX classes under utils/

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / model / ObservableValue.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/model/ObservableValue.java b/app/src/main/java/net/ktnx/mobileledger/model/ObservableValue.java
deleted file mode 100644 (file)
index 4632815..0000000
--- a/app/src/main/java/net/ktnx/mobileledger/model/ObservableValue.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright © 2019 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
- * under the term of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your opinion), any later version.
- *
- * Mobile-Ledger is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License terms for details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
- */
-
-package net.ktnx.mobileledger.model;
-
-import java.util.Observable;
-import java.util.Observer;
-
-public class ObservableValue<T> {
-    private final ObservableValueImpl<T> impl = new ObservableValueImpl<>();
-    public ObservableValue() {}
-    public ObservableValue(T initialValue) {
-        impl.setValue(initialValue, false);
-    }
-    public void set(T newValue) {
-        impl.setValue(newValue);
-    }
-    public T get() {
-        return impl.getValue();
-    }
-    public void addObserver(Observer o) {
-        impl.addObserver(o);
-    }
-    public void deleteObserver(Observer o) {
-        impl.deleteObserver(o);
-    }
-    public void notifyObservers() {
-        impl.notifyObservers();
-    }
-    public void notifyObservers(Object arg) {
-        impl.notifyObservers(arg);
-    }
-    public void deleteObservers() {
-        impl.deleteObservers();
-    }
-    public boolean hasChanged() {
-        return impl.hasChanged();
-    }
-    public int countObservers() {
-        return impl.countObservers();
-    }
-    private class ObservableValueImpl<T> extends Observable {
-        protected T value;
-        public void setValue(T newValue) {
-            setValue(newValue, true);
-        }
-        private synchronized void setValue(T newValue, boolean notify) {
-            if ((newValue == null) && (value == null)) return;
-
-            if ((newValue != null) && newValue.equals(value)) return;
-
-            T oldValue = value;
-            value = newValue;
-            setChanged();
-            if (notify) notifyObservers(oldValue);
-        }
-        public T getValue() {
-            return value;
-        }
-    }
-}
\ No newline at end of file