org.teiid.query.function.aggregate

Class SingleArgumentAggregateFunction

java.lang.Object

org.teiid.query.function.aggregate.AggregateFunction

org.teiid.query.function.aggregate.SingleArgumentAggregateFunction

Direct Known Subclasses:

ArrayAgg, ConstantFunction, FirstLastValue, JSONArrayAgg, Max, Min, Ntile, StatsFunction, Sum, TextAgg, XMLAgg

public abstract class SingleArgumentAggregateFunction
extends AggregateFunction

Field Summary

Fields inherited from class org.teiid.query.function.aggregate.AggregateFunction

argIndexes

Constructor Summary

Constructors

Constructor and Description
SingleArgumentAggregateFunction()

Method Summary

Modifier and Type	Method and Description
void	addInputDirect(List<?> tuple, CommandContext commandContext) Called for the element value in every row of a group.
abstract void	addInputDirect(Object input, List<?> tuple, CommandContext commandContext)
void	initialize(Class<?> dataType, Class<?> inputType)
void	initialize(Class<?> dataType, Class<?>[] inputTypes) Called to initialize the function.

Methods inherited from class org.teiid.query.function.aggregate.AggregateFunction

addInput, filter, getArgIndexes, getOutputType, getResult, getState, getStateTypes, reset, respectsNull, setArgIndexes, setConditionIndex, setState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SingleArgumentAggregateFunction

public SingleArgumentAggregateFunction()

Method Detail

addInputDirect

public void addInputDirect(List<?> tuple,
                           CommandContext commandContext)
                    throws TeiidComponentException,
                           TeiidProcessingException

Description copied from class: AggregateFunction

Called for the element value in every row of a group.

Specified by:

addInputDirect in class AggregateFunction

Throws:

TeiidProcessingException

TeiidComponentException

initialize

public void initialize(Class<?> dataType,
                       Class<?>[] inputTypes)

Description copied from class: AggregateFunction

Called to initialize the function. In the future this may expand with additional information.

Overrides:

initialize in class AggregateFunction

Parameters:

dataType - Data type of element begin aggregated

initialize

public void initialize(Class<?> dataType,
                       Class<?> inputType)

Parameters:

dataType -

inputType -

addInputDirect

public abstract void addInputDirect(Object input,
                                    List<?> tuple,
                                    CommandContext commandContext)
                             throws TeiidProcessingException,
                                    TeiidComponentException

Throws:

TeiidProcessingException

TeiidComponentException