AggResetContext (Apache Calcite API)

All Superinterfaces:

NestedBlockBuilder

All Known Subinterfaces:

AggAddContext, AggResultContext, WinAggAddContext, WinAggResetContext, WinAggResultContext

All Known Implementing Classes:

AggAddContextImpl, AggResetContextImpl, AggResultContextImpl, WinAggAddContextImpl, WinAggResetContextImpl, WinAggResultContextImpl
```
public interface AggResetContext
extends NestedBlockBuilder
```
Information for a call to AggImplementor.implementReset(AggContext, AggResetContext).
AggResetContext provides access to the accumulator variables that should be reset.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  java.util.List<Expression> accumulator()
  Returns accumulator variables that should be reset.
  - Methods inherited from interface org.apache.calcite.adapter.enumerable.NestedBlockBuilder
    currentBlock, currentNullables, exitBlock, nestBlock, nestBlock, nestBlock

- Method Detail
  - accumulator
```
java.util.List<Expression> accumulator()
```
    Returns accumulator variables that should be reset. There MUST be an assignment even if you just assign the default value.
    
    Returns:
    
    accumulator variables that should be reset or empty list when no accumulator variables are used by the aggregate implementation.
    
    See Also:
    
    AggImplementor.getStateType(org.apache.calcite.adapter.enumerable.AggContext)