src/org/redkale/source/EntityInfo.java

@@ -43,6 +43,15 @@ public final class EntityInfo<T> {
     //Entity构建器
     private final Creator<T> creator;
 
+    //Entity构建器参数
+    private final String[] constructorParameters;
+
+    //Entity构建器参数Attribute
+    private final Attribute<T, Serializable>[] constructorAttributes;
+
+    //Entity构建器参数Attribute
+    private final Attribute<T, Serializable>[] unconstructorAttributes;
+
     //主键
     final Attribute<T, Serializable> primary;
 
@@ -202,6 +211,13 @@ public final class EntityInfo<T> {
         this.tableStrategy = dts;
 
         this.creator = Creator.create(type);
+        Creator.ConstructorParameters cp = null;
+        try {
+            cp = this.creator.getClass().getMethod("create", Object[].class).getAnnotation(Creator.ConstructorParameters.class);
+        } catch (Exception e) {
+            logger.severe(type + " cannot find ConstructorParameters Creator", e);
+        }
+        this.constructorParameters = (cp == null || cp.value().length < 1) ? null : cp.value();
         Attribute idAttr0 = null;
         Map<String, String> aliasmap0 = null;
         Class cltmp = type;
@@ -271,6 +287,22 @@ public final class EntityInfo<T> {
         this.queryAttributes = queryattrs.toArray(new Attribute[queryattrs.size()]);
         this.insertAttributes = insertattrs.toArray(new Attribute[insertattrs.size()]);
         this.updateAttributes = updateattrs.toArray(new Attribute[updateattrs.size()]);
+        if (this.constructorParameters == null) {
+            this.constructorAttributes = null;
+            this.unconstructorAttributes = null;
+        } else {
+            this.constructorAttributes = new Attribute[this.constructorParameters.length];
+            List<Attribute<T, Serializable>> unconstructorAttrs = new ArrayList<>();
+            for (Attribute<T, Serializable> attr : queryAttributes) {
+                int pos = Arrays.binarySearch(this.constructorParameters, attr.field());
+                if (pos >= 0) {
+                    this.constructorAttributes[pos] = attr;
+                } else {
+                    unconstructorAttrs.add(attr);
+                }
+            }
+            this.unconstructorAttributes = unconstructorAttrs.toArray(new Attribute[unconstructorAttrs.size()]);
+        }
         if (table != null) {
             StringBuilder insertsb = new StringBuilder();
             StringBuilder insertsb2 = new StringBuilder();
@@ -630,9 +662,30 @@ public final class EntityInfo<T> {
      * @throws SQLException SQLException
      */
     protected T getValue(final SelectColumn sels, final ResultSet set) throws SQLException {
-        T obj = creator.create();
-        for (Attribute<T, Serializable> attr : queryAttributes) {
+        T obj;
+        Attribute<T, Serializable>[] attrs = this.queryAttributes;
+        if (this.constructorParameters == null) {
+            obj = creator.create();
+        } else {
+            Object[] cps = new Object[this.constructorParameters.length];
+            for (int i = 0; i < this.constructorAttributes.length; i++) {
+                Attribute<T, Serializable> attr = this.constructorAttributes[i];
                 if (sels == null || sels.test(attr.field())) {
+                    cps[i] = getFieldValue(attr, set);
+                }
+            }
+            obj = creator.create(cps);
+            attrs = this.unconstructorAttributes;
+        }
+        for (Attribute<T, Serializable> attr : attrs) {
+            if (sels == null || sels.test(attr.field())) {
+                attr.set(obj, getFieldValue(attr, set));
+            }
+        }
+        return obj;
+    }
+
+    protected Serializable getFieldValue(Attribute<T, Serializable> attr, final ResultSet set) throws SQLException {
         final Class t = attr.type();
         Serializable o;
         if (t == byte[].class) {
@@ -682,9 +735,6 @@ public final class EntityInfo<T> {
                 }
             }
         }
-                attr.set(obj, o);
-            }
-        }
-        return obj;
+        return o;
     }
 }