Instead you can define some as an object (instead of a class) and it becomes a singleton instance of the class.
相反您可以定义一个对象(而不是类)并且它将成为类的一个单例实例。
If you scope variables appropriately and reduce the use of instance variables, you can reduce this kind of object retention.
如果您适当地限制了变量的范围并且减少实例变量的使用，则可以减少此类对象保留。
With each key, an instance variable is created on the object with that name and data.
对于每个键，会在对象上创建一个具有对象名称和数据的实例变量。
This helps control the number of user accounts and groups that can modify the instance, or any object within the instance.
这样有助于控制可以修改实例或者实例中任何对象的用户帐户和组的数量。
This includes information about the runtime environment, the business environment and the instance of the application object that created the event.
这包括关于运行时环境、业务环境和创建事件的应用程序对象的实例的信息。
When all file descriptors for an instance are closed, the resources and underlying object are freed so the kernel can reuse them.
当关于某实例的所有文件描述符都关闭时，资源和下层对象都将释放，以供内核再次使用。
The code example shows how the application looks up a cache instance through its JNDI name, puts an object into a cache instance, and then retrieves it later.
下面的代码示例显示了应用程序如何通过其JNDI名称查找缓存实例，将对象放入缓存实例中，并稍后对其进行检索。
Accessing arrays, instance variables, and object references are not supported as of now.
目前不支持访问数组、实例变量和对象引用。
This is unusual because it requires a developer to create an instance of an object just to access non-instance (static) methods and fields!
这种做法并不常见，因为需要开发人员创建仅用于访问非实例(静态)方法和字段的对象的实例。
The difference in cumulative size occurs because the aggregated data structure level view uses summarized instance counts and the object/class leak suspects view uses actual instance and size counts.
总大小的差别是由于聚合数据结构级别视图使用汇总实例计数，对象/类泄漏疑点视图使用实际事例和大小计数。
This knowledge is used to ensure that the creation and modification of instance data conforms to the structure and type rules for the data object.
该知识用于确保对实例数据的创建和修改符合数据对象的结构和类型规则。
The BTYPE column identifies the object type: 'T' for table, 'I' for index, and 'F' for function instance.
BTYPE列显示对象类型：'T' 表示表，'I' 表示索引，'F' 表示函数实例。
In general, group membership is only considered for dynamic SQL and non-database object authorizations (such as instance level commands and utilities).
一般来说，只对于动态sql和非数据库对象授权(比如实例级命令和实用程序)，需要考虑组成员关系。
I then passed the engine instance the template (simple-txt.tmpl) and the binding object.
然后我将模板(simple - txt . tmpl)和binding对象传递给这个引擎实例。
The second find method in the customer class, findAllOrder(), uses a key with the searched object type and the customer ID of this instance.
客户类中的第二个find方法是findAllOrder()，它使用了一个包含搜索到的对象类型和该实例的客户ID 的密钥。
When this happens, our new px_thaw method will create a Set::Object instance and place the contents of the Memento object in it.
当这个操作发生时，我们新的 px_thaw方法将创建Set::Object实例并把 Memento对象的内容放入其中。
You can verify it manually with the instanceof operator, a handy tool introduced with PHP V5 that sits between an object instance and a class name.
可以用instance of操作符来手动验证这一点，该操作符是PHPV 5引入的介于对象实例和类名之间的一个便捷工具。
Instead, a new Rate business object instance automatically gets created and assigned to output1.
相反，会自动创建一个新的Rate业务对象实例并赋值给out put1。
This will have the effect of recreating the original Set: : Object instance, and it will appear to the user as if none of the magic ever happened.
这将产生重新创建原始set：Object实例的效果，而且在用户看来仿佛根本没有发生魔术。
First, you need to create a new variable and assign it to an instance of the XMLHttpRequest object.
首先需要创建一个新变量并赋给它一个XMLHttpRequest对象实例。
The object we get back is cast to our EJB home object, and from this object we create an instance of the Converter bean.
我们得到的对象可转换为ejbhome对象，并且可以从这个对象创建一个Converterbean实例。
This instance populates the backend data, sets an instance object of UserFormBean, and returns this object using this method call.
这一实例植入后端数据，设置userformbean的实例对象，并使用以下方法调用返回该对象。
First, note the "index_html" method; it is called to present an object instance, and it does so by building HTML.
首先，请注意“index_html”方法：它被调用来显示一个对象实例，这是通过构建HTML 完成的。
The gateway requires a single instance of a bridge object and a single instance of a WebSphere MQ queue manager proxy object.
网关需要一个网桥对象的实例，以及一个WebSpheremq队列管理器代理对象的实例。
The method accepts a parse tree (as an XPathNode object) as parameter and, for now, returns an instance of DFATable.
目前，该方法接受解析树（作为一个XPathNode对象）作为参数，并返回DFATable的实例。
An instance of a Zend_Rest_Client object is created and initialized with the Wikipedia API service endpoint as constructor argument.
创建了Zend _ Rest_Client对象的一个实例，在初始化操作中确定WikipediaAPI服务端点作为构造函数参数。
The DocumentRoot instance object is the first retrieved, and is the root node used in the operation logic in Listing 8.
所检索到的第一个对象是DocumentRoot实例对象，此对象在清单8中的操作逻辑中作为根节点使用。
Once you construct your DSN and create an XML_Query2XML object instance, it's time to actually execute an SQL query on the RDBMS and turn the result into XML.
构造DSN并创建XML_Query 2x ML对象实例后，即可实际对RDBMS执行SQL查询并将结果转换为XML。
An instance of Dispatch is a callable object and can be configured with as many rules as you wish.
Dispatch实例是个可调用对象，可以用数量不限的规则来配置它。
Still any code is allowed to modify properties defined on the prototype object as long as the modification is directly on the prototype object itself, and not on the instance.
尽管如此，我们仍然可以在对象的prototype的生命周期内来修改它本身的属性，但不是在对象的实例上。
应用推荐