Package org.jaxen.util
Class SingletonList
- java.lang.Object
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- java.util.AbstractCollection<E>
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- java.util.AbstractList
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- org.jaxen.util.SingletonList
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- All Implemented Interfaces:
java.lang.Iterable
,java.util.Collection
,java.util.List
public class SingletonList extends java.util.AbstractList
A utility class that implements singleton lists (to avoid dependency on JDK 1.3). Many operations includingadd()
andremove()
throw UnsupportedOperationExceptions.- Version:
- 1.2b12
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Field Summary
Fields Modifier and Type Field Description private java.lang.Object
element
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Constructor Summary
Constructors Constructor Description SingletonList(java.lang.Object element)
Creates a new singleton list.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
get(int index)
Returns the single element in the list.int
size()
Returns 1.-
Methods inherited from class java.util.AbstractList
add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList
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Methods inherited from class java.util.AbstractCollection
addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString
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Method Detail
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size
public int size()
Returns 1.- Specified by:
size
in interfacejava.util.Collection
- Specified by:
size
in interfacejava.util.List
- Specified by:
size
in classjava.util.AbstractCollection
- Returns:
- 1
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get
public java.lang.Object get(int index)
Returns the single element in the list.- Specified by:
get
in interfacejava.util.List
- Specified by:
get
in classjava.util.AbstractList
- Returns:
- the only element in the list
- Throws:
java.lang.IndexOutOfBoundsException
- if index is not 0
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