Mappings.CoreMapping (Apache Calcite API)

All Superinterfaces:

java.lang.Iterable<IntPair>

All Known Subinterfaces:

Mapping, Mappings.FunctionMapping, Mappings.SourceMapping, Mappings.TargetMapping

All Known Implementing Classes:

AbstractSourceMapping, AbstractTargetMapping, Mappings.AbstractMapping, Mappings.FiniteAbstractMapping, Mappings.IdentityMapping, Mappings.InverseMapping, Mappings.OverridingSourceMapping, Mappings.OverridingTargetMapping, Mappings.PartialFunctionImpl, Mappings.PartialMapping, Mappings.SurjectionWithInverse, Permutation

Enclosing class:

Mappings
```
public static interface Mappings.CoreMapping
extends java.lang.Iterable<IntPair>
```
Core interface of all mappings.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MappingType`	`getMappingType()`	Returns the mapping type.
`int`	`size()`	Returns the number of elements in the mapping.

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

- Method Detail
  - getMappingType
```
MappingType getMappingType()
```
    Returns the mapping type.
    
    Returns:
    
    Mapping type
  - size
```
int size()
```
    Returns the number of elements in the mapping.