Package org.jfree.report.expressions.sys
Class IsNullExpression
java.lang.Object
org.jfree.report.expressions.AbstractExpression
org.jfree.report.expressions.sys.IsNullExpression
- All Implemented Interfaces:
Serializable
,Cloneable
,Expression
Creation-Date: 27.01.2006, 20:42:19
- Author:
- Thomas Morgner
- See Also:
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Constructor Summary
Constructors -
Method Summary
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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Constructor Details
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IsNullExpression
public IsNullExpression()
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Method Details
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getValue
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setValue
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computeValue
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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