Class StatsFunction
- java.lang.Object
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- org.teiid.query.function.aggregate.AggregateFunction
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- org.teiid.query.function.aggregate.SingleArgumentAggregateFunction
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- org.teiid.query.function.aggregate.StatsFunction
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public class StatsFunction extends SingleArgumentAggregateFunction
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Field Summary
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Fields inherited from class org.teiid.query.function.aggregate.AggregateFunction
argIndexes
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Constructor Summary
Constructors Constructor Description StatsFunction(AggregateSymbol.Type function)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addInputDirect(Object input, List<?> tuple, CommandContext commandContext)
Object
getResult(CommandContext commandContext)
Called after all values have been processed to get the result.void
getState(List<Object> state)
List<? extends Class<?>>
getStateTypes()
void
reset()
Called to reset the state of the function.int
setState(List<?> state, int index)
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Methods inherited from class org.teiid.query.function.aggregate.SingleArgumentAggregateFunction
addInputDirect, initialize, initialize
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Methods inherited from class org.teiid.query.function.aggregate.AggregateFunction
addInput, filter, getArgIndexes, getOutputType, respectsNull, setArgIndexes, setConditionIndex
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Constructor Detail
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StatsFunction
public StatsFunction(AggregateSymbol.Type function)
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Method Detail
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reset
public void reset()
Description copied from class:AggregateFunction
Called to reset the state of the function.- Specified by:
reset
in classAggregateFunction
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addInputDirect
public void addInputDirect(Object input, List<?> tuple, CommandContext commandContext) throws FunctionExecutionException, ExpressionEvaluationException, TeiidComponentException
- Specified by:
addInputDirect
in classSingleArgumentAggregateFunction
- Throws:
FunctionExecutionException
ExpressionEvaluationException
TeiidComponentException
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getResult
public Object getResult(CommandContext commandContext) throws FunctionExecutionException, ExpressionEvaluationException, TeiidComponentException
Description copied from class:AggregateFunction
Called after all values have been processed to get the result.- Specified by:
getResult
in classAggregateFunction
- Returns:
- Result value
- Throws:
FunctionExecutionException
ExpressionEvaluationException
TeiidComponentException
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getState
public void getState(List<Object> state)
- Overrides:
getState
in classAggregateFunction
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getStateTypes
public List<? extends Class<?>> getStateTypes()
- Overrides:
getStateTypes
in classAggregateFunction
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setState
public int setState(List<?> state, int index)
- Overrides:
setState
in classAggregateFunction
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