IndexedVector (antlr Javadoc)

java.lang.Object
- antlr.collections.impl.IndexedVector

```
public class IndexedVector
extends java.lang.Object
```
A simple indexed vector: a normal vector except that you must specify a key when adding an element. This allows fast lookup and allows the order of specification to be preserved.

Field Summary

Fields
Modifier and Type Field Description

protected Vector elements

protected java.util.Hashtable index

Constructor Summary

Constructors
Constructor Description

IndexedVector()
IndexedVector constructor comment.

IndexedVector(int size)
IndexedVector constructor comment.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`appendElement(java.lang.Object key, java.lang.Object value)`
`java.lang.Object`	`elementAt(int i)`	Returns the element at the specified index.
`java.util.Enumeration`	`elements()`
`java.lang.Object`	`getElement(java.lang.Object key)`
`boolean`	`removeElement(java.lang.Object key)`	remove element referred to by key NOT value; return false if not found.
`int`	`size()`

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

- Field Detail
  - elements
```
protected Vector elements
```
  - index
```
protected java.util.Hashtable index
```
- Constructor Detail
  - IndexedVector
```
public IndexedVector()
```
    IndexedVector constructor comment.
  - IndexedVector
```
public IndexedVector(int size)
```
    IndexedVector constructor comment.
    
    Parameters:
    
    size - int
- Method Detail
  - appendElement
```
public void appendElement(java.lang.Object key,
                          java.lang.Object value)
```
  - elementAt
```
public java.lang.Object elementAt(int i)
```
    Returns the element at the specified index.
    
    Parameters:
    
    index - the index of the desired element
    
    Throws:
    
    java.lang.ArrayIndexOutOfBoundsException - If an invalid index was given.
  - elements
```
public java.util.Enumeration elements()
```
  - getElement
```
public java.lang.Object getElement(java.lang.Object key)
```
  - removeElement
```
public boolean removeElement(java.lang.Object key)
```
    remove element referred to by key NOT value; return false if not found.
  - size
```
public int size()
```