用于 Adobe® Flash® Platform 的 ActionScript® 3.0 参考
主页  |  隐藏包列表和类列表 |   |   |  新增内容  |  索引  |  附录  |  为什么显示为英语?
过滤条件: 正在从服务器检索数据...
正在从服务器检索数据...
com.adobe.icc.vo 

Statement  - AS3 Asset Composer

com.adobe.icc.vo
public class Statement
继承Statement Inheritance Object
实现 IEventDispatcher

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Defines a statement used in a filtering operation on the server.

Statements should be formed as ({attributeName} {operator} {attributeValue}).

Example 1: For, specifying (state = 1), set:

  • attributeName = "state"
  • operator = OP_EQUALS
  • attributeValue = 1

For, specifiying 'name' begins that 'abc', i.e, name = 'abc, set:

  • attributeName = "name"
  • operator = OP_STARTS_WITH
  • attributeValue = "abc"

Statements can also be chained together using the innerStatement and joinOperator properties. This allows one to build compound statements.

Example 2: Consider the statement ((name = 'abc) OR name = 'yz'), i.e., either 'name' begins with 'abc' or ends with 'xyz'. For this, set:

  • attributeName = "name"
  • operator = OP_STARTS_WITH
  • attributeValue = "abc"

Then make a new Statement object and set:

  • attributeName = "name"
  • operator = OP_ENDS_WITH
  • attributeValue = "xyz"

Finally, set the xyz statement as the innerStatement of the abc statement and set abc statement's joinOperator = JOIN_OR.

Example 3: Searching for modules that either do use a Data Dictionary or use a specific Data Dictionary.

In this case, we take advantage of the fact that statements can search on nested properties. The path to the property is the same as that which you would normally use to get at the property on the corresponding Value Object: If a DataModule object does not use a Data Dictionary, its dataDictionaryRefs property will be null. If it uses one, however, its DataDictionaryRefs property will set to the ID of the Data Dictionary used by the module.

The first statement will therefore check for a null dataDictionaryRefs property and the second (nested statement) will check for an existing dataDictionaryRefs property set to a given Data Dictionary ID string (note that the server will take care of looking at the first item within the dataDictionaryRefs list even if there are no items):

  • attributeName = "dataDictionaryRefs"
  • operator = OP_IS_NULL
  • attributeValue = null
  • joinOperator = JOIN_OR
  • innerStatement =
    • attributeName = "dataDictionaryRefs"
    • operator = OP_EQUALS
    • attributeValue = {dataDictionaryId}



公共属性
 属性由以下参数定义
  attributeName : String
Name of the attribute for the LHS of the statement.
Statement
  attributeValue : Object
Value for the RHS of the statement.
Statement
 Inheritedconstructor : Object
对类对象或给定对象实例的构造函数的引用。
Object
  innerStatement : Statement
Inner statement for this statement.
Statement
  joinOperator : String
Inner statement join operator.
Statement
  operator : String
Operator for this statement.
Statement
公共方法
 方法由以下参数定义
  
Statement(attribute:String = null, operator:String = null, value:Object = null)
Constructs a new Statement object, given optional parameters to a simple statement, for convenience.
Statement
  
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, weakRef:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.
Statement
  
Dispatches an event into the event flow.
Statement
  
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
Statement
 Inherited
表示对象是否已经定义了指定的属性。
Object
 Inherited
表示 Object 类的实例是否在指定为参数的对象的原型链中。
Object
 Inherited
表示指定的属性是否存在、是否可枚举。
Object
  
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
Statement
 Inherited
设置循环操作动态属性的可用性。
Object
 Inherited
返回此对象的字符串表示形式,其格式设置遵守区域设置特定的约定。
Object
 Inherited
返回指定对象的字符串表示形式。
Object
 Inherited
返回指定对象的原始值。
Object
  
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
Statement
公共常量
 常量由以下参数定义
  JOIN_AND : String = "AND"
[静态] Specifies an AND join.
Statement
  JOIN_AND_NOT : String = "AND_NOT"
[静态] Specifies an AND NOT join.
Statement
  JOIN_OR : String = "OR"
[静态] Specifies an OR join.
Statement
  JOIN_OR_NOT : String = "OR_NOT"
[静态] Specifies an OR NOT join.
Statement
  OP_CONTAINS : String = "CONTAINS"
[静态] Specifies the contains operator.
Statement
  OP_ENDS_WITH : String = "ENDS_WITH"
[静态] Specifies the ends with operator.
Statement
  OP_EQUALS : String = "EQUALS"
[静态] Specifies the equals operator.
Statement
  OP_GREATER_EQUALS : String = "GREATER_THAN_EQUALS"
[静态] Specifies the greater than or equal to operator.
Statement
  OP_GREATER_THAN : String = "GREATER_THAN"
[静态] Specifies the greater than operator.
Statement
  OP_IS_NULL : String = "IS_NULL"
[静态] Specifies the null operator.
Statement
  OP_LESS_EQUALS : String = "LESS_THAN_EQUALS"
[静态] Specifies the equal to operator.
Statement
  OP_LESS_THAN : String = "LESS_THAN"
[静态] Specifies the less than operator.
Statement
  OP_NOT_EQUALS : String = "NOT_EQUALS"
[静态] Specifies the not equal operator.
Statement
  OP_STARTS_WITH : String = "STARTS_WITH"
[静态] Specifies the starts with operator.
Statement
属性详细信息

attributeName

属性
attributeName:String

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Name of the attribute for the LHS of the statement. Must be same as the name of the property in the corresponding object type.

此属性可用作数据绑定的源。修改此属性后,将调度 propertyChange 事件。



实现
    public function get attributeName():String
    public function set attributeName(value:String):void

attributeValue

属性 
attributeValue:Object

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Value for the RHS of the statement.

此属性可用作数据绑定的源。修改此属性后,将调度 propertyChange 事件。



实现
    public function get attributeValue():Object
    public function set attributeValue(value:Object):void

innerStatement

属性 
innerStatement:Statement

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Inner statement for this statement. This will allow joining two statements together, using the JoinOperator. This statement is then treated as: (this {JoinOperator} innerStatement), where 'this' refers to this Statement object and 'innerStatement' refers to the innerStatement property in this object.

WARNING: This property cannot be more than one level deep. Deeper nesting (from the top statement) will be ignored and the server will not throw an exception (the deeper nesting will be silently ignored).

此属性可用作数据绑定的源。修改此属性后,将调度 propertyChange 事件。



实现
    public function get innerStatement():Statement
    public function set innerStatement(value:Statement):void

joinOperator

属性 
joinOperator:String

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Inner statement join operator. Must be one of the JOINconstant values.

此属性可用作数据绑定的源。修改此属性后,将调度 propertyChange 事件。



实现
    public function get joinOperator():String
    public function set joinOperator(value:String):void

operator

属性 
operator:String

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Operator for this statement. Must be one of the OPconstant values.

此属性可用作数据绑定的源。修改此属性后,将调度 propertyChange 事件。



实现
    public function get operator():String
    public function set operator(value:String):void
构造函数详细信息

Statement

()构造函数
public function Statement(attribute:String = null, operator:String = null, value:Object = null)

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Constructs a new Statement object, given optional parameters to a simple statement, for convenience.

参数
attribute:String (default = null) — The name of the attribute that this statement is created for.
 
operator:String (default = null) — The operator to use between the attribute and value.
 
value:Object (default = null) — The value of the attribute.
方法详细信息

addEventListener

()方法
public function addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, weakRef:Boolean = false):void

Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event. You can register event listeners on all nodes in the display list for a specific type of event, phase, and priority.

After you successfully register an event listener, you cannot change its priority through additional calls to addEventListener(). To change a listener's priority, you must first call removeEventListener(). Then you can register the listener again with the new priority level.

After the listener is registered, subsequent calls to addEventListener() with a different value for either type or useCapture result in the creation of a separate listener registration. For example, if you first register a listener with useCapture set to true, it listens only during the capture phase. If you call addEventListener() again using the same listener object, but with useCapture set to false, you have two separate listeners: one that listens during the capture phase, and another that listens during the target and bubbling phases.

You cannot register an event listener for only the target phase or the bubbling phase. Those phases are coupled during registration because bubbling applies only to the ancestors of the target node.

When you no longer need an event listener, remove it by calling EventDispatcher.removeEventListener(); otherwise, memory problems might result. Objects with registered event listeners are not automatically removed from memory because the garbage collector does not remove objects that still have references.

Copying an EventDispatcher instance does not copy the event listeners attached to it. (If your newly created node needs an event listener, you must attach the listener after creating the node.) However, if you move an EventDispatcher instance, the event listeners attached to it move along with it.

If the event listener is being registered on a node while an event is also being processed on this node, the event listener is not triggered during the current phase but may be triggered during a later phase in the event flow, such as the bubbling phase.

If an event listener is removed from a node while an event is being processed on the node, it is still triggered by the current actions. After it is removed, the event listener is never invoked again (unless it is registered again for future processing).

参数

type:String — The type of event.
 
listener:Function — The listener function that processes the event. This function must accept an event object as its only parameter and must return nothing, as this example shows:

function(evt:Event):void

The function can have any name.
 
useCapture:Boolean (default = false) — Determines whether the listener works in the capture phase or the target and bubbling phases. If useCapture is set to true, the listener processes the event only during the capture phase and not in the target or bubbling phase. If useCapture is false, the listener processes the event only during the target or bubbling phase. To listen for the event in all three phases, call addEventListener() twice, once with useCapture set to true, then again with useCapture set to false.
 
priority:int (default = 0) — The priority level of the event listener. Priorities are designated by a 32-bit integer. The higher the number, the higher the priority. All listeners with priority n are processed before listeners of priority n-1. If two or more listeners share the same priority, they are processed in the order in which they were added. The default priority is 0.
 
weakRef:Boolean (default = false) — Determines whether the reference to the listener is strong or weak. A strong reference (the default) prevents your listener from being garbage-collected. A weak reference does not.

Class-level member functions are not subject to garbage collection, so you can set useWeakReference to true for class-level member functions without subjecting them to garbage collection. If you set useWeakReference to true for a listener that is a nested inner function, the function will be garbge-collected and no longer persistent. If you create references to the inner function (save it in another variable) then it is not garbage-collected and stays persistent.

dispatchEvent

()方法 
public function dispatchEvent(event:Event):Boolean

Dispatches an event into the event flow. The event target is the EventDispatcher object upon which dispatchEvent() is called.

参数

event:Event — The event object dispatched into the event flow.

返回
Boolean — A value of true unless preventDefault() is called on the event, in which case it returns false.

hasEventListener

()方法 
public function hasEventListener(type:String):Boolean

Checks whether the EventDispatcher object has any listeners registered for a specific type of event. This allows you to determine where an EventDispatcher object has altered handling of an event type in the event flow hierarchy. To determine whether a specific event type will actually trigger an event listener, use IEventDispatcher.willTrigger().

The difference between hasEventListener() and willTrigger() is that hasEventListener() examines only the object to which it belongs, whereas willTrigger() examines the entire event flow for the event specified by the type parameter.

参数

type:String — The type of event.

返回
Boolean — A value of true if a listener of the specified type is registered; false otherwise.

removeEventListener

()方法 
public function removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void

Removes a listener from the EventDispatcher object. If there is no matching listener registered with the EventDispatcher object, a call to this method has no effect.

参数

type:String — The type of event.
 
listener:Function — The listener object to remove.
 
useCapture:Boolean (default = false) — Specifies whether the listener was registered for the capture phase or the target and bubbling phases. If the listener was registered for both the capture phase and the target and bubbling phases, two calls to removeEventListener() are required to remove both: one call with useCapture set to true, and another call with useCapture set to false.

willTrigger

()方法 
public function willTrigger(type:String):Boolean

Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type. This method returns true if an event listener is triggered during any phase of the event flow when an event of the specified type is dispatched to this EventDispatcher object or any of its descendants.

The difference between hasEventListener() and willTrigger() is that hasEventListener() examines only the object to which it belongs, whereas willTrigger() examines the entire event flow for the event specified by the type parameter.

参数

type:String — The type of event.

返回
Boolean — A value of true if a listener of the specified type will be triggered; false otherwise.
常量详细信息

JOIN_AND

常量
public static const JOIN_AND:String = "AND"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies an AND join.

JOIN_AND_NOT

常量 
public static const JOIN_AND_NOT:String = "AND_NOT"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies an AND NOT join.

JOIN_OR

常量 
public static const JOIN_OR:String = "OR"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies an OR join.

JOIN_OR_NOT

常量 
public static const JOIN_OR_NOT:String = "OR_NOT"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies an OR NOT join.

OP_CONTAINS

常量 
public static const OP_CONTAINS:String = "CONTAINS"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the contains operator.

OP_ENDS_WITH

常量 
public static const OP_ENDS_WITH:String = "ENDS_WITH"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the ends with operator.

OP_EQUALS

常量 
public static const OP_EQUALS:String = "EQUALS"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the equals operator. That is, "=".

OP_GREATER_EQUALS

常量 
public static const OP_GREATER_EQUALS:String = "GREATER_THAN_EQUALS"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the greater than or equal to operator.

OP_GREATER_THAN

常量 
public static const OP_GREATER_THAN:String = "GREATER_THAN"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the greater than operator.

OP_IS_NULL

常量 
public static const OP_IS_NULL:String = "IS_NULL"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the null operator.

OP_LESS_EQUALS

常量 
public static const OP_LESS_EQUALS:String = "LESS_THAN_EQUALS"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the equal to operator.

OP_LESS_THAN

常量 
public static const OP_LESS_THAN:String = "LESS_THAN"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the less than operator.

OP_NOT_EQUALS

常量 
public static const OP_NOT_EQUALS:String = "NOT_EQUALS"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the not equal operator.

OP_STARTS_WITH

常量 
public static const OP_STARTS_WITH:String = "STARTS_WITH"

语言版本: ActionScript 3.0
产品版本: Asset Composer Building Block 9.5
运行时版本: AIR (unsupported), Flash Player 9, Flash Player 10

Specifies the starts with operator.





[ X ]为什么显示为英语?
《ActionScript 3.0 参考》中的内容以英语显示

《ActionScript 3.0 参考》中的部分内容未翻译成所有语言。当某个语言元素未翻译时,将显示为英语。例如,ga.controls.HelpBox 类未翻译成任何语言。因此在简体中文版的参考中,ga.controls.HelpBox 类显示为英语。