AggResetContextImpl (Apache Calcite API)

java.lang.Object
- org.apache.calcite.adapter.enumerable.NestedBlockBuilderImpl
- - org.apache.calcite.adapter.enumerable.impl.AggResetContextImpl

All Implemented Interfaces:

AggResetContext, NestedBlockBuilder

Direct Known Subclasses:

AggResultContextImpl, WinAggResetContextImpl
```
public abstract class AggResetContextImpl
extends NestedBlockBuilderImpl
implements AggResetContext
```
Implementation of AggResetContext

Field Summary

Fields
Modifier and Type Field Description

private java.util.List<Expression> accumulator

Constructor Summary

Constructors
Constructor Description

AggResetContextImpl(BlockBuilder block, java.util.List<Expression> accumulator)
Creates aggregate reset context.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.List<Expression>`	`accumulator()`	Returns accumulator variables that should be reset.
`AggregateCall`	`call()`

Methods inherited from class org.apache.calcite.adapter.enumerable.NestedBlockBuilderImpl
currentBlock, currentNullables, exitBlock, nestBlock, nestBlock, nestBlock

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.calcite.adapter.enumerable.NestedBlockBuilder
currentBlock, currentNullables, exitBlock, nestBlock, nestBlock, nestBlock

- Field Detail
  - accumulator
```
private final java.util.List<Expression> accumulator
```
- Constructor Detail
  - AggResetContextImpl
```
public AggResetContextImpl(BlockBuilder block,
                           java.util.List<Expression> accumulator)
```
    Creates aggregate reset context.
    
    Parameters:
    
    block - Code block that will contain the added initialization
    
    accumulator - Accumulator variables that store the intermediate aggregate state
- Method Detail
  - accumulator
```
public java.util.List<Expression> accumulator()
```
    Description copied from interface: AggResetContext
    
    Returns accumulator variables that should be reset. There MUST be an assignment even if you just assign the default value.
    
    Specified by:
    
    accumulator in interface AggResetContext
    
    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)
  - call
```
public AggregateCall call()
```