Business View Properties

Property Name	Description
Auto Add Prefix in Display Names	Similar to the data source property Use Mapping Name Prefix which controls whether to add "tablename_" as the prefix of the table names in the default mapping names of their columns, this property determines whether to automatically append the same prefix in the default display names of the view elements in the business view when you add view elements based on the columns. The two properties work independently from each another, meaning, you can set Use Mapping Name Prefix to "true" to automatically prefix column names with corresponding table names in a data source, but choose not to have the prefix for view elements by setting Auto Add Prefix in Display Names to "false". By default, the property is "false". In this case, when a column's mapping name contains the "tablename_" prefix which however is not automatically generated but user customized and you add a view element based on the column, Designer still removes the prefix from the display name of the view element. You can also set this property via the same-name menu command in the Business View Editor. Data type: Boolean
Description	Specifies the description of the business view. Data type: String
Display Name	Specifies the display name of the business view. Data type: String
Maximum Duration	Specifies the maximum elapsed time allowed to fetch data from the data source when the business view runs, measured in seconds. By default, the property value is blank, meaning the time is unlimited. For more information, see Limiting the Query Run Time and Number of Records. Data type: Integer
Maximum Rows	Specifies the maximum number of rows to be fetched from the data source when the business view runs. By default, the property value is blank, meaning the number is unlimited. For more information, see Limiting the Query Run Time and Number of Records. Data type: Integer
Prefetch	If you set the property to "true", Logi Report Engine will fetch all the columns from the raw database which the business view references into cache and reuse them afterwards when users run web reports and dashboards that apply the business view at runtime. This reduces the querying and connecting times to the database and can help improve the runtime performance. However "Prefetch=true" does not work when users schedule to run web reports, therefore they may get different report result when running the same web report in different ways. If you set the property to "false", Logi Report Engine will query data on demand at runtime. When several business view elements are based on the same columns, they will reuse the columns. This property also affects the following: When it is "true", the List<ColumnInfo> parameter in the implementation class of the QueryOptimizer interface will include all columns in the business view; otherwise, it will only include columns that the report or dashboard uses. When it is "true", Logi Report Engine will display all the parameters that the business view applies in the UI for specifying the parameter values at runtime; otherwise, it will only display the parameters the data objects in the report or dashboard reference. Data type: Boolean

Property Name

Description

Auto Add Prefix in Display Names

Similar to the data source property Use Mapping Name Prefix which controls whether to add "tablename_" as the prefix of the table names in the default mapping names of their columns, this property determines whether to automatically append the same prefix in the default display names of the view elements in the business view when you add view elements based on the columns. The two properties work independently from each another, meaning, you can set Use Mapping Name Prefix to "true" to automatically prefix column names with corresponding table names in a data source, but choose not to have the prefix for view elements by setting Auto Add Prefix in Display Names to "false".

By default, the property is "false". In this case, when a column's mapping name contains the "tablename_" prefix which however is not automatically generated but user customized and you add a view element based on the column, Designer still removes the prefix from the display name of the view element.

You can also set this property via the same-name menu command in the Business View Editor.

Data type: Boolean

Description

Specifies the description of the business view.

Data type: String

Display Name

Specifies the display name of the business view.

Data type: String

Maximum Duration

Specifies the maximum elapsed time allowed to fetch data from the data source when the business view runs, measured in seconds. By default, the property value is blank, meaning the time is unlimited. For more information, see Limiting the Query Run Time and Number of Records.

Data type: Integer

Maximum Rows

Specifies the maximum number of rows to be fetched from the data source when the business view runs. By default, the property value is blank, meaning the number is unlimited. For more information, see Limiting the Query Run Time and Number of Records.

Data type: Integer

Prefetch

If you set the property to "true", Logi Report Engine will fetch all the columns from the raw database which the business view references into cache and reuse them afterwards when users run web reports and dashboards that apply the business view at runtime. This reduces the querying and connecting times to the database and can help improve the runtime performance. However "Prefetch=true" does not work when users schedule to run web reports, therefore they may get different report result when running the same web report in different ways.

If you set the property to "false", Logi Report Engine will query data on demand at runtime. When several business view elements are based on the same columns, they will reuse the columns.

This property also affects the following:

When it is "true", the List<ColumnInfo> parameter in the implementation class of the QueryOptimizer interface will include all columns in the business view; otherwise, it will only include columns that the report or dashboard uses.
When it is "true", Logi Report Engine will display all the parameters that the business view applies in the UI for specifying the parameter values at runtime; otherwise, it will only display the parameters the data objects in the report or dashboard reference.

Data type: Boolean