top.ibase4j.core.util

类 InstanceUtil

java.lang.Object

top.ibase4j.core.util.InstanceUtil

public final class InstanceUtil
extends Object

实例辅助类

从以下版本开始:

2012-07-18

作者:

ShenHuaJie

字段概要

字段

限定符和类型	字段和说明
static Map<String,Class<?>>	clazzMap
protected static org.apache.logging.log4j.Logger	logger
static Map<String,com.esotericsoftware.reflectasm.MethodAccess>	methodMap

方法概要

限定符和类型	方法和说明
static Class<?>	getClass(String clazz) Return the specified class.
static <T> T	getDiff(T oldBean, T newBean)
static <E> List<E>	getInstanceList(Class<E> cls, List<?> list) 封装实体
static <E> List<E>	getInstanceList(Class<E> cls, ResultSet rs) 封装实体
static Object	invokeMethod(Object owner, String methodName, Object... args) 执行某对象方法
static <E> ArrayList<E>	newArrayList() Constructs an empty ArrayList.
static <E> ArrayList<E>	newArrayList(E... e) Constructs an empty ArrayList.
static <k,v> ConcurrentHashMap<k,v>	newConcurrentHashMap() Constructs an empty ConcurrentHashMap.
static <k,v> HashMap<k,v>	newHashMap() Constructs an empty HashMap.
static <k,v> HashMap<k,v>	newHashMap(k key, v value) Constructs an HashMap.
static <E> HashSet<E>	newHashSet() Constructs an empty HashSet.
static <k,v> Hashtable<k,v>	newHashtable() Constructs an empty Hashtable.
static <E> E	newInstance(Class<E> cls, Map<String,?> map) 新建实例
static <K> K	newInstance(Class<K> cls, Object... args)
static Object	newInstance(String clazz) Return a new instance of the given class.
static Object	newInstance(String className, Object... args) 新建实例
static <k,v> LinkedHashMap<k,v>	newLinkedHashMap() Constructs an empty LinkedHashMap.
static <k,v> LinkedHashMap<k,v>	newLinkedHashMap(k key, v value) Constructs an LinkedHashMap.
static <E> LinkedHashSet<E>	newLinkedHashSet() Constructs an empty LinkedHashSet.
static <E> LinkedList<E>	newLinkedList() Constructs an empty LinkedList.
static <k,v> TreeMap<k,v>	newTreeMap() Constructs an empty TreeMap.
static <E> TreeSet<E>	newTreeSet() Constructs an empty TreeSet.
static <E> Vector<E>	newVector() Constructs an empty Vector.
static <k,v> WeakHashMap<k,v>	newWeakHashMap() Constructs an empty WeakHashMap.
static <T> T	parse(String json, Class<T> clazz)
static <T> T	to(Object orig, Class<T> clazz) 实例化并复制属性
static Map<String,Object>	transBean2Map(Object obj)
static <T> T	transMap2Bean(Map<String,Object> map, Class<T> clazz)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

logger

protected static org.apache.logging.log4j.Logger logger

clazzMap

public static Map<String,Class<?>> clazzMap

methodMap

public static Map<String,com.esotericsoftware.reflectasm.MethodAccess> methodMap

方法详细资料

to

public static final <T> T to(Object orig,
                             Class<T> clazz)

实例化并复制属性

parse

public static final <T> T parse(String json,
                                Class<T> clazz)

transMap2Bean

public static <T> T transMap2Bean(Map<String,Object> map,
                                  Class<T> clazz)

transBean2Map

public static Map<String,Object> transBean2Map(Object obj)

getDiff

public static <T> T getDiff(T oldBean,
                            T newBean)

参数:

oldBean -

newBean -

返回:

getClass

public static final Class<?> getClass(String clazz)

Return the specified class. Checks the ThreadContext classloader first, then uses the System classloader. Should replace all calls to Class.forName( claz ) (which only calls the System class loader) when the class might be in a different classloader (e.g. in a webapp).

参数:

clazz - the name of the class to instantiate

返回:

the requested Class object

getInstanceList

public static final <E> List<E> getInstanceList(Class<E> cls,
                                                List<?> list)

封装实体

参数:

cls - 实体类

list - 实体Map集合

返回:

getInstanceList

public static final <E> List<E> getInstanceList(Class<E> cls,
                                                ResultSet rs)

封装实体

参数:

cls - 实体类

list - 数据查询结果集

返回:

newInstance

public static final <E> E newInstance(Class<E> cls,
                                      Map<String,?> map)

新建实例

参数:

cls - 实体类

list - 实体属性Map

返回:

newInstance

public static final Object newInstance(String clazz)

Return a new instance of the given class. Checks the ThreadContext classloader first, then uses the System classloader. Should replace all calls to Class.forName( claz ).newInstance() (which only calls the System class loader) when the class might be in a different classloader (e.g. in a webapp).

参数:

clazz - the name of the class to instantiate

返回:

an instance of the specified class

newInstance

public static final <K> K newInstance(Class<K> cls,
                                      Object... args)

newInstance

public static final Object newInstance(String className,
                                       Object... args)

新建实例

参数:

className - 类名

args - 构造函数的参数

返回:

新建的实例

invokeMethod

public static final Object invokeMethod(Object owner,
                                        String methodName,
                                        Object... args)

执行某对象方法

参数:

owner - 对象

methodName - 方法名

args - 参数

返回:

方法返回值

newArrayList

public static final <E> ArrayList<E> newArrayList()

Constructs an empty ArrayList.

newArrayList

public static final <E> ArrayList<E> newArrayList(E... e)

Constructs an empty ArrayList.

newHashMap

public static final <k,v> HashMap<k,v> newHashMap()

Constructs an empty HashMap.

newHashSet

public static final <E> HashSet<E> newHashSet()

Constructs an empty HashSet.

newHashtable

public static final <k,v> Hashtable<k,v> newHashtable()

Constructs an empty Hashtable.

newLinkedHashMap

public static final <k,v> LinkedHashMap<k,v> newLinkedHashMap()

Constructs an empty LinkedHashMap.

newLinkedHashSet

public static final <E> LinkedHashSet<E> newLinkedHashSet()

Constructs an empty LinkedHashSet.

newLinkedList

public static final <E> LinkedList<E> newLinkedList()

Constructs an empty LinkedList.

newTreeMap

public static final <k,v> TreeMap<k,v> newTreeMap()

Constructs an empty TreeMap.

newTreeSet

public static final <E> TreeSet<E> newTreeSet()

Constructs an empty TreeSet.

newVector

public static final <E> Vector<E> newVector()

Constructs an empty Vector.

newWeakHashMap

public static final <k,v> WeakHashMap<k,v> newWeakHashMap()

Constructs an empty WeakHashMap.

newHashMap

public static final <k,v> HashMap<k,v> newHashMap(k key,
                                                  v value)

Constructs an HashMap.

newLinkedHashMap

public static final <k,v> LinkedHashMap<k,v> newLinkedHashMap(k key,
                                                              v value)

Constructs an LinkedHashMap.

newConcurrentHashMap

public static final <k,v> ConcurrentHashMap<k,v> newConcurrentHashMap()

Constructs an empty ConcurrentHashMap.