Class Ext.data.ArrayReader

Package:	Ext.data
Class:	ArrayReader
Extends:	Ext.data.DataReader
Defined In:	ArrayReader.js

Data reader class to create an Array of Ext.data.Record objects from an Array. Each element of that Array represents a row of data fields. The fields are pulled into a Record object using as a subscript, the mapping property of the field definition if it exists, or the field's ordinal position in the definition.

The code below lists all configuration options.

var RecordDef = Ext.data.Record.create([
       {name: 'name', mapping: 1},
       {name: 'occupation', mapping: 2},
   ]);
   var myReader = new Ext.data.ArrayReader({
       id: 0                     // The subscript within row Array that provides an ID for the Record （可选）
   }, RecordDef);

This would consume an Array like this:


   [ [1, 'Bill', 'Gardener'], [2, 'Ben', 'Horticulturalist'] ]

属性 - 方法 - 事件 - 设置选项

公共属性

此类没有公共属性。

公共方法

方法		定义对象
	ArrayReader(`Object meta`, `Array/Ext.data.Record constructor}`)	ArrayReader
	Create a new JsonReader	ArrayReader
	readRecords(`Object o`) : Object	ArrayReader
	Create a data block containing Ext.data.Records from an XML document.	ArrayReader

公共事件

此类没有公共事件。

设置选项

设置选项		定义对象
	id : String	ArrayReader
	（可选） The subscript within row Array that provides an ID for the Record	ArrayReader
	totalProperty : String	ArrayReader
	Name of the property from which to retrieve the total number of records in the dataset. This is only needed if the wh...	ArrayReader

构造函数

ArrayReader

public function ArrayReader(Object meta, Array/Ext.data.Record constructor})

Create a new JsonReader

参数：

meta : Object
Metadata configuration options.
constructor} : Array/Ext.data.Record
recordType Either an Array of field definition objects, or an Ext.data.Record.html">Ext.data.Record.html#create">Ext.data.Record object created using {@link Ext.data.Record.create.

方法详情

readRecords

public function readRecords(Object o)

Create a data block containing Ext.data.Records from an XML document.

参数：

o : Object
An object which contains an Array of row objects in the property specified in the config as 'root, and optionally a property, specified in the config as 'totalProperty' which contains the total size of the dataset.

返回：

Object
data A data block which is used by an Ext.data.Store object as a cache of Ext.data.Records.

This method is defined by ArrayReader.

设置详情

id

id : String

（可选） The subscript within row Array that provides an ID for the Record

This config option is defined by ArrayReader.

totalProperty

totalProperty : String

Name of the property from which to retrieve the total number of records in the dataset. This is only needed if the whole dataset is not passed in one go, but is being paged from the remote server.

This config option is defined by ArrayReader.