ds.JsDataSource Extends goog.ds.DataNode
Data source whose backing is JavaScript data Names that are reserved for system use and shouldn't be used for data node names: eval, toSource, toString, unwatch, valueOf, watch. Behavior is undefined if these names are used.

Inheritance

Constructor

goog.ds.JsDataSource(rootdataNameopt_parent)

Parameters

root : Object
The root JS node.
dataName : string
The name of this node relative to the parent node.
opt_parent : Object=
Optional parent of this JsDataSource. implements goog.ds.DataNode.

Instance Methods

Public Protected Private
createChildNodes_(opt_force)
Creates the DataNodeList with the child nodes for this element. Allows for only building list as needed.
Arguments:
opt_force : boolean=
Whether to force recreating child nodes, defaults to false.
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get()
No description.
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getChildNode(nameopt_canCreate) goog.ds.DataNode
Gets a named child node of the current node
Arguments:
name : string
The node name.
opt_canCreate : boolean=
If true, can create child node.
Returns: goog.ds.DataNode  The child node, or null if no node of this name exists.
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getChildNodeValue(name) Object
Gets the value of a child node
Arguments:
name : string
The node name.
Returns: Object  The value of the node, or null if no value or the child node doesn't exist.
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getChildNodes()
TODO(user) revisit lazy creation.
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getDataName() string
Get the name of the node relative to the parent node
Returns: string  The name of the node.
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getDataPath() string
Gets the a qualified data path to this node
Returns: string  The data path.
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getLoadState() goog.ds.LoadState
Gets the state of the backing data for this node TODO(user) Discuss null value handling
Returns: goog.ds.LoadState  The state.
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isList() boolean
Whether the value of this node is a homogeneous list of data
Returns: boolean  True if a list.
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load()
Load or reload the backing data for this node
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set(value)
Set the value of the node
Arguments:
value : *
The new value of the node.
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setChildNode(namevalue) Object
Sets a named child node of the current node. If value is null, removes the child node.
Arguments:
name : string
The node name.
value : Object
The value to set, can be DataNode, object, property, or null.
Returns: Object  The child node, if set.
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setDataName(dataName)
Setthe name of the node relative to the parent node
Arguments:
dataName : string
The name of the node.
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setIsList_(isList)
Set this data source to use list semantics. List data sources: - Are assumed to have child nodes of all of the same type of data - Fire data changes on the root node of the list whenever children are added or removed
Arguments:
isList : ?boolean
True to use list semantics.
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setRoot(root)
Sets the root JS object
Arguments:
root : Object
The root JS object. Can be null.
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get(var_args) *
Get the value of the node
Arguments:
var_args : ?...
Do not check arity of arguments, because some subclasses require args.
Returns: *  The value of the node, or null if no value.
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getChildNode(nameopt_canCreate) goog.ds.DataNode
Gets a named child node of the current node
Arguments:
name : string
The node name.
opt_canCreate : boolean=
Whether to create a child node if it does not exist.
Returns: goog.ds.DataNode  The child node, or null if no node of this name exists.
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getChildNodeValue(name) *
Gets the value of a child node
Arguments:
name : string
The node name.
Returns: *  The value of the node, or null if no value or the child node doesn't exist.
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getChildNodes(opt_selector) !goog.ds.DataNodeList
Gets all of the child nodes of the current node. Should return an empty DataNode list if no child nodes.
Arguments:
opt_selector : string=
String selector to choose child nodes.
Returns: !goog.ds.DataNodeList  The child nodes.
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getDataName() string
Get the name of the node relative to the parent node
Returns: string  The name of the node.
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getDataPath() string
Gets the a qualified data path to this node
Returns: string  The data path.
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getLoadState() goog.ds.LoadState
Gets the state of the backing data for this node
Returns: goog.ds.LoadState  The state.
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isList() boolean
Whether the value of this node is a homogeneous list of data
Returns: boolean  True if a list.
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set(value)
Set the value of the node
Arguments:
value : *
The new value of the node.
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setChildNode(namevalue) Object
Sets a named child node of the current node.
Arguments:
name : string
The node name.
value : Object
The value to set, can be DataNode, object, property, or null. If value is null, removes the child node.
Returns: Object  The child node, if the node was set.
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setDataName(name)
Set the name of the node relative to the parent node
Arguments:
name : string
The name of the node.
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Instance Properties

dataName_ :
No description.
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parent_ :
No description.
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root_ :
The root JS object. Can be null.
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load :
Load or reload the backing data for this node
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Package ds

Package Reference