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public interface QueryExecuterFactory
Factory classes used to create query executers.
For each query language, a query executer factory must be created and registered as a JR property. Query executer factory instances must be thread-safe as they are cached and used as singletons.
JRQueryExecuter
Field Summary | |
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static java.lang.String |
QUERY_EXECUTER_FACTORY_PREFIX
Prefix for query executer factory properties. |
Method Summary | |
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JRQueryExecuter |
createQueryExecuter(JasperReportsContext jasperReportsContext,
JRDataset dataset,
java.util.Map<java.lang.String,? extends JRValueParameter> parameters)
Creates a query executer. |
java.lang.Object[] |
getBuiltinParameters()
Returns the built-in parameters associated with this query type. |
boolean |
supportsQueryParameterType(java.lang.String className)
Decides whether the query executers created by this factory support a query parameter type. |
Methods inherited from interface net.sf.jasperreports.engine.query.JRQueryExecuterFactory |
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createQueryExecuter |
Field Detail |
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static final java.lang.String QUERY_EXECUTER_FACTORY_PREFIX
Method Detail |
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java.lang.Object[] getBuiltinParameters()
{"Param1", String.class, "Param2", "List.class"}
).
getBuiltinParameters
in interface JRQueryExecuterFactory
JRQueryExecuter createQueryExecuter(JasperReportsContext jasperReportsContext, JRDataset dataset, java.util.Map<java.lang.String,? extends JRValueParameter> parameters) throws JRException
jasperReportsContext
- the JasperReportsContextdataset
- the dataset containing the query, fields, etcparameters
- map of value parameters (instances of JRValueParameter
)
indexed by name
JRException
boolean supportsQueryParameterType(java.lang.String className)
supportsQueryParameterType
in interface JRQueryExecuterFactory
className
- the value class name of the parameter
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