Package org.jfree.report.expressions.sys
Class IsEmptyDataExpression
- java.lang.Object
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- org.jfree.report.expressions.AbstractExpression
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- org.jfree.report.expressions.sys.IsEmptyDataExpression
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
,Expression
public class IsEmptyDataExpression extends AbstractExpression
Creation-Date: 31.01.2006, 18:55:09- Author:
- Thomas Morgner
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description IsEmptyDataExpression()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
computeValue()
Return the current expression value.-
Methods inherited from class org.jfree.report.expressions.AbstractExpression
clone, getDataRow, getInstance, getName, getParentLocale, getReportConfiguration, getResourceBundleFactory, getRuntime, isDeepTraversing, isPrecompute, isPreserve, setDeepTraversing, setName, setPrecompute, setPreserve, setRuntime
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Method Detail
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computeValue
public java.lang.Object computeValue() throws DataSourceException
Return the current expression value.The value depends (obviously) on the expression implementation.
- Returns:
- the value of the function.
- Throws:
DataSourceException
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