task: Add Composite Entity pattern (#1705)

* add composite entity pattern * add composite entity pattern * Update ReactorTest.java * resolve some code quality problems * modified a lot * remove some extra codes * modified README * removed the author name and adjusted the spacing Co-authored-by: zwebrain <11811721@mail.sustech.edu.cn> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>
2026-05-14 16:58:47 +00:00 · 2021-04-26 16:15:52 +08:00
parent 2fce2e44e2
commit 09b577f634
14 changed files with 406 additions and 0 deletions
@@ -0,0 +1,23 @@
+package com.iluwatar.compositeentity;
+
+import java.util.Arrays;
+import java.util.stream.IntStream;
+
+/**
+ * A coarse-grained object is an object with its own life cycle manages its own relationships to
+ * other objects. It can be an object contained in the composite entity, or, composite entity itself
+ * can be the coarse-grained object which holds dependent objects.
+ */
+
+public abstract class CoarseGrainedObject<T> {
+
+  DependentObject<T>[] dependentObjects;
+
+  public void setData(T... data) {
+    IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
+  }
+
+  public T[] getData() {
+    return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
+  }
+}