Class JRDesignValueDataset
java.lang.Object
net.sf.jasperreports.engine.base.JRBaseElementDataset
net.sf.jasperreports.engine.design.JRDesignElementDataset
net.sf.jasperreports.charts.design.JRDesignChartDataset
net.sf.jasperreports.charts.design.JRDesignValueDataset
- All Implemented Interfaces:
Serializable
,Cloneable
,JRChartDataset
,JRValueDataset
,DatasetRunHolder
,JRChangeEventsSupport
,JRCloneable
,JRElementDataset
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)
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final String
protected JRExpression
The expression that returns the single value contained in this dataset.Fields inherited from class net.sf.jasperreports.engine.design.JRDesignElementDataset
PROPERTY_DATASET_RESET_TYPE, PROPERTY_DATASET_RUN, PROPERTY_INCREMENT_GROUP, PROPERTY_INCREMENT_TYPE, PROPERTY_INCREMENT_WHEN_EXPRESSION, PROPERTY_RESET_GROUP, PROPERTY_RESET_TYPE
Fields inherited from class net.sf.jasperreports.engine.base.JRBaseElementDataset
datasetResetType, datasetRun, incrementGroup, incrementType, incrementWhenExpression, resetGroup
Fields inherited from interface net.sf.jasperreports.charts.JRChartDataset
CATEGORY_DATASET, GANTT_DATASET, HIGHLOW_DATASET, PIE_DATASET, TIMEPERIOD_DATASET, TIMESERIES_DATASET, VALUE_DATASET, XY_DATASET, XYZ_DATASET
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Constructor Summary
ConstructorsConstructorDescriptionJRDesignValueDataset
(JRChartDataset dataset) Construct a new dataset that is a copy of an existing one. -
Method Summary
Modifier and TypeMethodDescriptionclone()
void
collectExpressions
(ChartsExpressionCollector collector) void
collectExpressions
(JRExpressionCollector collector) Adds all the expression used by this plot with the specified collector.byte
Returns the type of this dataset.Returns the expression that indicates the value held by this dataset.void
setValueExpression
(JRExpression valueExpression) Sets the expression that indicates the value held by this dataset.void
validate
(ChartsVerifier verifier) Validates the dataset using a verifier.Methods inherited from class net.sf.jasperreports.engine.design.JRDesignElementDataset
getEventSupport, setDatasetRun, setIncrementGroup, setIncrementType, setIncrementWhenExpression, setResetGroup, setResetType
Methods inherited from class net.sf.jasperreports.engine.base.JRBaseElementDataset
getDatasetResetType, getDatasetRun, getIncrementGroup, getIncrementType, getIncrementWhenExpression, getResetGroup
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface net.sf.jasperreports.engine.JRElementDataset
getDatasetResetType, getDatasetRun, getIncrementGroup, getIncrementType, getIncrementWhenExpression, getResetGroup
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Field Details
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PROPERTY_VALUE_EXPRESSION
- See Also:
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valueExpression
The expression that returns the single value contained in this dataset.
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Constructor Details
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JRDesignValueDataset
Construct a new dataset that is a copy of an existing one.- Parameters:
dataset
- the dataset to copy
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Method Details
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getValueExpression
Description copied from interface:JRValueDataset
Returns the expression that indicates the value held by this dataset.- Specified by:
getValueExpression
in interfaceJRValueDataset
- Returns:
- the expression that indicates the value held by this dataset
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setValueExpression
Sets the expression that indicates the value held by this dataset.- Parameters:
valueExpression
- the expression that returns the value held by this dataset
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getDatasetType
public byte getDatasetType()Returns the type of this dataset.- Specified by:
getDatasetType
in interfaceJRChartDataset
- Overrides:
getDatasetType
in classJRDesignChartDataset
- Returns:
- the type of this dataset - always
VALUE_DATASET
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collectExpressions
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.- Specified by:
collectExpressions
in interfaceJRElementDataset
- Overrides:
collectExpressions
in classJRBaseElementDataset
- Parameters:
collector
- the expression collector to use
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collectExpressions
- Specified by:
collectExpressions
in interfaceJRChartDataset
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validate
Description copied from interface:JRChartDataset
Validates the dataset using a verifier.Broken rules are collected by the verifier.
- Specified by:
validate
in interfaceJRChartDataset
- Parameters:
verifier
- the verifier to use for validation
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clone
- Specified by:
clone
in interfaceJRCloneable
- Overrides:
clone
in classJRDesignElementDataset
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