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64 vFoglight
Web Component Guide
renderers are looked up from the type, property and unit of the value. If no renderer is
found, a default renderer is used. Therefore, in most cases, a renderer is not required.
For more information, see “Renderers” on page 148.
Default Values
If a property has a default value it is displayed as text beside the edit icon in the Value
column of the tree table in the Configuration tab. A property that has been configured to
use a specific value can be set back to its default property by clicking the Edit icon, then
selecting Clear to default from the drop-down menu.
Data Sources, Data Types, and Data Objects
The data that is displayed by the application comes from a data source, as set up in
vFoglight. The data from a data source is held in data objects as properties. For
example, some of the Host data-object properties are the name of the host, its IP
address, and the number of fatal events. The data type is a data-object template, and
determines the structure of a data object. Examples of data types are Host, AppServer,
WebLogic, WebSphere, Agent, and Event. For more information about each property's
default, see <install directory>\docs\module-catalogue.html.
Data Sources
Data sources encapsulate all that the system knows about the data and yet cleanly
separates knowledge of the data from how it is presented.
The data source is organized as a dynamic graph of objects, starting from a root that
represents the entire data model.
“Objects” are defined in the API and are not tied to the creation of any particular Java
Object.
You can investigate an instance of the graph of vFoglight data source objects by
choosing Configure > Data in the browser interface.
Data Source Queries
• The syntax of a data source query resembles SQL, but queries return a list of
objects.
• Data source queries are strongly typed.
- Web Component Guide 1
- Table of Contents 3
- 4 vFoglight 4
- Table of Contents 5 5
- 6 vFoglight 6
- Introduction to this Guide 7
- About vFoglight 8
- About this Guide 8
- Core Documentation Set 10
- Cartridge Documentation Sets 10
- Text Conventions 11
- About Vizioncore Inc 12
- Introduction to this Guide 13 13
- Contacting Dell 14
- Guatemala 18
- Hong Kong 18
- Ireland (Cherrywood) 19
- Italy (Milan) 19
- Japan (Kawasaki) 20
- Korea (Seoul) 20
- Latin America 20
- Luxemborg 20
- U.K.(Bracknell) 24
- U.S.A. (Austin, Texas) 24
- U.S. Virgin Islands 25
- Venezuela 25
- Framework 27
- Configuring the Default Views 28
- The User Interface 30
- View Components 32
- 42 vFoglight 42
- Overview of Web Components 43
- Containers 45
- Tables and Trees 47
- Charts and Gauges 47
- Time Range 48
- Topology 49
- Reporting 49
- 54 vFoglight 54
- The Web Component Framework 55
- Core Concepts 56
- Definitions and Entities 57
- Observations 58
- Metric Observations 59
- Enum Observations 61
- Parameters 63
- On Null Values 63
- Default Values 64
- Figure 2 67
- An Example Page 68
- Managing Dashboards 69
- Definitions Panes 70
- Data and Data Sources Pages 71
- Definitions Pane 72
- Additional Documentation 74
- Customizing the UI Quickly 74
- Finding Pages: Bookmarks 74
- Query definition editor 75
- Overview of Query Definitions 76
- Creating a Query in vFoglight 76
- Query Definition Settings 77
- Comments 78
- Context Help 78
- Data Source Type 79
- Data Source ID 80
- Required Parameters 80
- Object Type 81
- Root Path 81
- Aggregations 82
- Identifying Values 84
- Filter Results Based on Top N 85
- Order By 86
- Conditional Types 87
- Comparison 88
- Ma_hine_ne 89
- Sub Type is 90
- Sequence of Evaluation 91
- Parameters in Queries 94
- Creating a Query 94
- Copying a Query 96
- Editing a Query 98
- Deleting a Query 99
- 100 vFoglight 100
- Configuring Views and Context 101
- Configuring Views 102
- Definitions Page for a View 105
- General Tab 108
- Purpose of Views 110
- Context tab 112
- Configuration Tab 113
- Flow tab 114
- Configuring Flows for Views 115
- Layout Tab 121
- Context and the Context Tab 122
- Context Tab 123
- Context Types 124
- Additional Context 125
- Dynamic Context 126
- Flow Context 127
- TimeRange 128
- Runtime Values 129
- Simple Types 130
- Runtime Value Types 131
- Details of each Runtime Value 133
- Query Selection 135
- Theme Selection 137
- Icon Selection 138
- String Template 139
- Image Reference 140
- Localized String 140
- Return Types 143
- 146 vFoglight 146
- Localized Type Names 146
- Additional Components 147
- Renderers 148
- Types Tab 151
- Theme and Module Resources 155
- Printing 156
- Web Browser Printing 157
- PDF Generation 157
- Report Layout 158
- Scheduling Reports 159
- Remote Access to Views 160
- Google Gadget 161
- SharePoint Web Part 162
- 168 vFoglight 168
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