新增 Ref

src/main/java/xyz/zhouxy/plusone/commons/base/IntRef.java

@@ -0,0 +1,52 @@
+package xyz.zhouxy.plusone.commons.base;
+
+import java.util.function.IntUnaryOperator;
+
+import com.google.common.annotations.Beta;
+
+@Beta
+public class IntRef {
+
+    private int value;
+
+    public IntRef(int value) {
+        this.value = value;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    public void setValue(int value) {
+        this.value = value;
+    }
+
+    public void apply(IntUnaryOperator operator) {
+        this.value = operator.applyAsInt(this.value);
+    }
+
+    @Override
+    public String toString() {
+        return String.format("IntRef[%s]", value);
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + value;
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        return value == ((IntRef) obj).value;
+    }
+
+}