Lookahead

java.lang.Object
- EDU.purdue.jtb.parser.Expansion_
- - EDU.purdue.jtb.parser.Lookahead

```
public class Lookahead
extends Expansion_
```
Describes lookahead rule for a particular expansion or expansion sequence (See Sequence.java). In case this describes the lookahead rule for a single expansion unit, then a sequence is created with this node as the first element, and the expansion unit as the second and last element.

Nested Class Summary
- Nested classes/interfaces inherited from class EDU.purdue.jtb.parser.Expansion_
  Expansion_.EXP_TYPE

Field Summary
- Fields inherited from class EDU.purdue.jtb.parser.Expansion_
  EOL, inMinimumSize, myGeneration, nextGenerationIndex, parent

Constructor Summary

Constructors
Constructor Description

Lookahead()
Standard constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.StringBuilder`	`dump(int indent, java.util.Set<java.lang.Object> alreadyDumped)`
`java.util.List<Token>`	`getActionTokens()`
`int`	`getAmount()`
`Expansion_`	`getLaExpansion()`
`boolean`	`isExplicit()`
`void`	`setAmount(int am)`
`void`	`setExplicit(boolean ise)`
`void`	`setLaExpansion(Expansion_ laexp)`

Methods inherited from class EDU.purdue.jtb.parser.Expansion_
dumpPrefix, toString

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

- Constructor Detail
  - Lookahead
```
public Lookahead()
```
    Standard constructor
- Method Detail
  - dump
```
public java.lang.StringBuilder dump(int indent,
                                    java.util.Set<java.lang.Object> alreadyDumped)
```
    Overrides:
    
    dump in class Expansion_
    
    Parameters:
    
    indent - - the number of spaces for indenting
    
    alreadyDumped - - a Set of objects already dumped (unused)
    
    Returns:
    
    the formatted string dumping the class
  - getActionTokens
```
public final java.util.List<Token> getActionTokens()
```
    Returns:
    
    the action_tokens
  - setAmount
```
public final void setAmount(int am)
```
    Parameters:
    
    am - - the amount to set
  - getAmount
```
public final int getAmount()
```
    Returns:
    
    the amount
  - setLaExpansion
```
public final void setLaExpansion(Expansion_ laexp)
```
    Parameters:
    
    laexp - - the la_expansion to set
  - getLaExpansion
```
public final Expansion_ getLaExpansion()
```
    Returns:
    
    the la_expansion
  - setExplicit
```
public final void setExplicit(boolean ise)
```
    Parameters:
    
    ise - - the isExplicit to set
  - isExplicit
```
public final boolean isExplicit()
```
    Returns:
    
    the isExplicit