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修改创建对象时优先使用无参构造器 #42

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修改创建对象时优先使用无参构造器 #42

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25 changes: 12 additions & 13 deletions library/src/com/litesuits/orm/db/utils/ClassUtil.java
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Original file line number Diff line number Diff line change
@@ -1,17 +1,13 @@
package com.litesuits.orm.db.utils;

import android.annotation.TargetApi;
import android.os.Build;
import com.litesuits.orm.db.annotation.MapCollection;

import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.List;

/**
* 类工具
Expand All @@ -24,7 +20,7 @@ public class ClassUtil {
/**
* 判断类是否是基础数据类型
* 目前支持11种
* 在{@link com.litesuits.orm.db.utils.DataUtil#injectDataToObject} 中注入也有体现
* 在{@link DataUtil#injectDataToObject} 中注入也有体现
*/
public static boolean isBaseDataType(Class<?> clazz) {
return clazz.isPrimitive() || clazz.equals(String.class) || clazz.equals(Boolean.class)
Expand All @@ -35,7 +31,7 @@ public static boolean isBaseDataType(Class<?> clazz) {
}

/**
* 根据类获取对象：不再必须一个无参构造
* 根据类获取对象：不再必须一个无参构造，如果提供了无参构造，会优先调用
*/
public static <T> T newInstance(Class<T> claxx)
throws IllegalAccessException, InvocationTargetException, InstantiationException {
Expand All @@ -45,15 +41,18 @@ public static <T> T newInstance(Class<T> claxx)
if (cls.length == 0) {
c.setAccessible(true);
return (T) c.newInstance();
} else {
Object[] objs = new Object[cls.length];
for (int i = 0; i < cls.length; i++) {
objs[i] = getDefaultPrimiticeValue(cls[i]);
}
c.setAccessible(true);
return (T) c.newInstance(objs);
}
}
if (cons.length > 0) {
Constructor<?> c = cons[0];
Class[] cls = c.getParameterTypes();
Object[] objs = new Object[cls.length];
for (int i = 0; i < cls.length; i++) {
objs[i] = getDefaultPrimiticeValue(cls[i]);
}
c.setAccessible(true);
return (T) c.newInstance(objs);
}
return null;
}

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