org.jawk.jrt
Class KeyListImpl

java.lang.Object
  org.jawk.jrt.KeyListImpl

All Implemented Interfaces:

KeyList

public class KeyListImpl
extends java.lang.Object
implements KeyList

Implement the KeyList interface with an ArrayList.

Constructor Summary

KeyListImpl(java.util.Set<java.lang.Object> set)
Convert the set to a KeyList.

Method Summary

java.lang.Object	getFirstAndRemove()
int	size() Retrieve the number of elements in the KeyList.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KeyListImpl

public KeyListImpl(java.util.Set<java.lang.Object> set)

Convert the set to a KeyList. We could have used an ArrayList directly. However, tagging the implementation with a KeyList interface improves type checking within the parsing / semantic analysis phase.

Method Detail

getFirstAndRemove

public final java.lang.Object getFirstAndRemove()

Specified by:

getFirstAndRemove in interface KeyList

size

public int size()

Description copied from interface: KeyList

Retrieve the number of elements in the KeyList.

Specified by:

size in interface KeyList