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Java Source Code / Java Documentation » Report » jasperreports 2.0.1 » net.sf.jasperreports.charts.design   Source Cross Reference   Class Diagram   Java Document (Java Doc)   net.sf.jasperreports.engine.design.JRDesignChartDataset    net.sf.jasperreports.charts.design.JRDesignValueDataset JRDesignValueDataset public class JRDesignValueDataset extends JRDesignChartDataset implements JRValueDataset(Code) A data set that contains a single value. A value dataset is suitable for using with charts that show a single value against a potential range, such as meter chart or a thermometer chart. author:    Barry Klawans (bklawans@users.sourceforge.net) version:    $Id: JRDesignValueDataset.java 1794 2007-07-30 09:07:50Z teodord $ Field Summary protected  JRExpression valueExpression      The expression that returns the single value contained in this dataset. Constructor Summary public   JRDesignValueDataset(JRChartDataset dataset)      Construct a new dataset that is a copy of an existing one. Method Summary public  void collectExpressions(JRExpressionCollector collector)      Adds all the expression used by this plot with the specified collector. public  byte getDatasetType()      Returns the type of this dataset. public  JRExpression getValueExpression()      public  void setValueExpression(JRExpression valueExpression)      Sets the expression that indicates the value held by this dataset. public  void validate(JRVerifier verifier)      Field Detail valueExpression protected JRExpression valueExpression(Code) The expression that returns the single value contained in this dataset. Constructor Detail JRDesignValueDataset public JRDesignValueDataset(JRChartDataset dataset)(Code) Construct a new dataset that is a copy of an existing one. Parameters:   dataset - the dataset to copy Method Detail collectExpressions public void collectExpressions(JRExpressionCollector collector)(Code) Adds all the expression used by this plot with the specified collector. All collected expression that are also registered with a factory will be included with the report is compiled. Parameters:   collector - the expression collector to use getDatasetType public byte getDatasetType()(Code) Returns the type of this dataset. the type of this dataset - alwaysJRChartDataset.VALUE_DATASET getValueExpression public JRExpression getValueExpression()(Code) setValueExpression public void setValueExpression(JRExpression valueExpression)(Code) Sets the expression that indicates the value held by this dataset. Parameters:   valueExpression - the expression that returns the value held bythis dataset validate public void validate(JRVerifier verifier)(Code) Methods inherited from net.sf.jasperreports.engine.design.JRDesignChartDataset public byte getDatasetType()(Code)(Java Doc)