source:
trunk/workshop-routing-foss4g/web/GeoExt/docs/_sources/lib/GeoExt/data/LayerReader.txt
@
76
Revision 76, 1.3 KB checked in by djay, 12 years ago (diff) | |
---|---|
|
Line | |
---|---|
1 | |
2 | .. currentmodule:: GeoExt.data |
3 | |
4 | :class:`GeoExt.data.LayerReader` |
5 | ================================================================================ |
6 | |
7 | |
8 | .. cssclass:: meta |
9 | |
10 | |
11 | Extends |
12 | * `Ext.data.DataReader <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.DataReader>`_ |
13 | |
14 | |
15 | |
16 | |
17 | |
18 | |
19 | |
20 | .. class:: LayerReader(meta, recordType) |
21 | |
22 | Data reader class to create an array of |
23 | :class:`GeoExt.data.LayerRecord` objects from an array of |
24 | ``OpenLayers.Layer`` objects for use in a |
25 | :class:`GeoExt.data.LayerStore` object. |
26 | |
27 | |
28 | |
29 | Example Use |
30 | ----------- |
31 | |
32 | Sample using a reader to create records from an array of layers: |
33 | |
34 | .. code-block:: javascript |
35 | |
36 | var reader = new GeoExt.data.LayerReader(); |
37 | var layerData = reader.readRecords(map.layers); |
38 | var numRecords = layerData.totalRecords; |
39 | var layerRecords = layerData.records; |
40 | |
41 | |
42 | |
43 | |
44 | |
45 | |
46 | |
47 | |
48 | Public Methods |
49 | -------------- |
50 | |
51 | Public methods in addition to those |
52 | listed for `Ext.data.DataReader <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.DataReader>`_. |
53 | |
54 | |
55 | .. method:: LayerReader.readRecords |
56 | |
57 | :param layers: ``Array(OpenLayers.Layer)`` List of layers for creating |
58 | records. |
59 | :return: ``Object`` An object with ``records`` and ``totalRecords`` |
60 | properties. |
61 | |
62 | From an array of ``OpenLayers.Layer`` objects create a data block |
63 | containing :class:`GeoExt.data.LayerRecord` objects. |
64 | |
65 | |
66 | |
67 | |
68 |
Note: See TracBrowser
for help on using the repository browser.