AbstractSingleNode (Apache Calcite API)

java.lang.Object
- org.apache.calcite.interpreter.AbstractSingleNode<T>

Type Parameters:

T - Type of relational expression

All Implemented Interfaces:

Node

Direct Known Subclasses:

AggregateNode, FilterNode, ProjectNode, SortNode, WindowNode
```
abstract class AbstractSingleNode<T extends SingleRel>
extends java.lang.Object
implements Node
```
An interpreter that takes expects one incoming source relational expression.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected T rel
  
  protected Sink sink
  
  protected Source source
- Constructor Summary
  
  Constructors
  Constructor Description
  
  AbstractSingleNode(Compiler compiler, T rel)
- Method Summary
  - 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.interpreter.Node
    run

Field Detail

source
```
protected final Source source
```

sink
```
protected final Sink sink
```

rel

protected final T extends SingleRel rel

Constructor Detail

AbstractSingleNode

AbstractSingleNode(Compiler compiler,
                   T rel)