FromItem (IBM FHIR Server)

java.lang.Object
- com.ibm.fhir.database.utils.query.FromItem

Direct Known Subclasses:

FromJoin
```
public class FromItem
extends Object
```
An element in the FROM clause - TableRowSource: FROM xx_LOGICAL_RESOURCES AS LR0 - SelectRowSource: FROM (SELECT LR.LOGICAL_ID FROM ...) AS SUB0

Constructor Summary

Constructors
Modifier Constructor Description

protected FromItem(RowSource rowSource)

protected FromItem(RowSource rowSource, Alias alias)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Alias`	`getAlias()`	Get the alias associated with this item in the from clause.
`boolean`	`isAnsiJoin()`	Is this an ANSI-style join?
`<T> T`	`render(StatementRenderer<T> renderer)`	Render this item using the given renderer
`String`	`toPrettyString(boolean pretty)`	Render a string version of the item (for use when debugging)
`String`	`toString()`

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

- Constructor Detail
  - FromItem
```
protected FromItem(RowSource rowSource,
                   Alias alias)
```
    Parameters:
    
    rowSource -
    
    alias -
  - FromItem
```
protected FromItem(RowSource rowSource)
```
- Method Detail
  - getAlias
```
public Alias getAlias()
```
    Get the alias associated with this item in the from clause.
    
    Returns:
    
    the alias for this item. Can be null
  - isAnsiJoin
```
public boolean isAnsiJoin()
```
    Is this an ANSI-style join?
    
    Returns:
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - toPrettyString
```
public String toPrettyString(boolean pretty)
```
    Render a string version of the item (for use when debugging)
    
    Parameters:
    
    pretty -
    
    Returns:
  - render
```
public <T> T render(StatementRenderer<T> renderer)
```
    Render this item using the given renderer
    
    Type Parameters:
    
    T -
    
    Parameters:
    
    renderer -
    
    Returns: