public final class EmptyDataSource extends Object implements DataSource
Constructor and Description |
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EmptyDataSource()
Default-Constructor.
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Modifier and Type | Method and Description |
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EmptyDataSource |
clone()
Clones the data source.
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Object |
getValue(ExpressionRuntime runtime,
ReportElement element)
Returns the value for the data source (always null in this case).
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public Object getValue(ExpressionRuntime runtime, ReportElement element)
getValue
in interface DataSource
runtime
- the expression runtime that is used to evaluate formulas and expressions when computing the value of this
filter.element
- public EmptyDataSource clone()
clone
in interface DataSource
clone
in class Object