SQLAggregateIF (Ontopia)

All Known Implementing Classes:

SQLAggregate, SQLAggregateReference
```
public interface SQLAggregateIF
```
INTERNAL: Represents an aggregate function in a SQL query.

Field Summary

Fields
Modifier and Type Field Description

static int COUNT
INTERNAL: Constant referring to the COUNT aggregate function.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getAlias()`	INTERNAL: The column alias to use if this value is included in the projection.
`SQLAggregateIF`	`getReference()`	INTERNAL: Returns the referenced aggregate if one exists.
`int`	`getType()`	INTERNAL: Returns the aggregate function type indicated by one of the constants in the `SQLAggregateIF` interface.
`SQLValueIF`	`getValue()`	INTERNAL: Returns the SQLValueIF that the aggregate function is to be evaluated against.
`boolean`	`isReference()`	INTERNAL: Returns true if this aggregate is a reference to another.
`void`	`setAlias(String alias)`	INTERNAL: Sets the column alias.
`void`	`setValue(SQLValueIF value)`	INTERNAL: Sets the SQLValueIF that the aggregate function is to be evaluated against.

- Field Detail
  - COUNT
```
static final int COUNT
```
    INTERNAL: Constant referring to the COUNT aggregate function.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getType
```
int getType()
```
    INTERNAL: Returns the aggregate function type indicated by one of the constants in the SQLAggregateIF interface.
  - getValue
```
SQLValueIF getValue()
```
    INTERNAL: Returns the SQLValueIF that the aggregate function is to be evaluated against.
  - setValue
```
void setValue(SQLValueIF value)
```
    INTERNAL: Sets the SQLValueIF that the aggregate function is to be evaluated against.
  - getAlias
```
String getAlias()
```
    INTERNAL: The column alias to use if this value is included in the projection. The SQL select syntax is typically like "select value as from foo".
  - setAlias
```
void setAlias(String alias)
```
    INTERNAL: Sets the column alias.
  - isReference
```
boolean isReference()
```
    INTERNAL: Returns true if this aggregate is a reference to another.
  - getReference
```
SQLAggregateIF getReference()
```
    INTERNAL: Returns the referenced aggregate if one exists.