Resources
Various resources such as company's logo can be attached to a report. Resources are added to an appropriate property of a Report. The property has the following fields:
Field Description | Field Name |
Type. Type of the resource. Static means the resource is defined by a Resource Data field. Dynamic means that the resource is defined by a Name and an Expression fields. | type |
Resource Data. Data that resource contains in case of Static type. It is loaded from the file, including file name. After file is loaded, the file name becomes the resource identifier to be referenced in the report template in case of Dynamic resource type. | resource |
Name. Unique name of the resource. Used only if resource type is Static. By this name the resource is referenced in the report template in case of Dynamic resource type. | name |
Expression. An expression should return a Byte Array. It will be used as data for Dynamic resource. | expression |
Resolution Environment
Expression Resolution Environment: | |
For an absolute report, the report context itself. For a relative report, a context the report is launched for. | |
Report parameters table (if report is parameterized). It means that references in the Value expression may refer to fields defined by the parameters format of the parameterizer source data. | |
0 | |
Standard variables only. | |
Using Resources in Report Editor
To access resources in Report Editor a special report's STORAGE parameter is used. Image component can be used for this. To properly setup an Image component after adding it to a report template you should set the following component properties:
- Image Expression. This expression defines the way the Image component obtains its data.
$P{STORAGE}.resource("<resourceId>")expression should be used, where<resourceId>is the Name or Resource Data file name of the resource. - Expression Class. Expected resource expression return type. Should be set to
java.io.InputStream.
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