com.google.protobuf
Class LazyStringArrayList
java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractList<java.lang.String>
com.google.protobuf.LazyStringArrayList
- All Implemented Interfaces:
- LazyStringList, java.lang.Iterable<java.lang.String>, java.util.Collection<java.lang.String>, java.util.List<java.lang.String>, java.util.RandomAccess
public class LazyStringArrayList
- extends java.util.AbstractList<java.lang.String>
- implements LazyStringList, java.util.RandomAccess
An implementation of LazyStringList that wraps an ArrayList. Each
element is either a ByteString or a String. It caches the last one requested
which is most likely the one needed next. This minimizes memory usage while
satisfying the most common use cases.
Note that this implementation is not synchronized.
If multiple threads access an ArrayList instance concurrently,
and at least one of the threads modifies the list structurally, it
must be synchronized externally. (A structural modification is
any operation that adds or deletes one or more elements, or explicitly
resizes the backing array; merely setting the value of an element is not
a structural modification.) This is typically accomplished by
synchronizing on some object that naturally encapsulates the list.
If the implementation is accessed via concurrent reads, this is thread safe.
Conversions are done in a thread safe manner. It's possible that the
conversion may happen more than once if two threads attempt to access the
same element and the modifications were not visible to each other, but this
will not result in any corruption of the list or change in behavior other
than performance.
- Author:
- jonp@google.com (Jon Perlow)
| Fields inherited from class java.util.AbstractList |
modCount |
|
Method Summary |
void |
add(ByteString element)
Appends the specified element to the end of this list (optional
operation). |
void |
add(int index,
java.lang.String element)
|
boolean |
addAll(int index,
java.util.Collection<? extends java.lang.String> c)
|
void |
clear()
|
java.lang.String |
get(int index)
|
ByteString |
getByteString(int index)
Returns the element at the specified position in this list as a ByteString. |
java.lang.String |
remove(int index)
|
java.lang.String |
set(int index,
java.lang.String s)
|
int |
size()
|
| Methods inherited from class java.util.AbstractList |
add, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, removeRange, subList |
| Methods inherited from class java.util.AbstractCollection |
addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface java.util.List |
add, addAll, contains, containsAll, equals, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, removeAll, retainAll, subList, toArray, toArray |
EMPTY
public static final LazyStringList EMPTY
LazyStringArrayList
public LazyStringArrayList()
LazyStringArrayList
public LazyStringArrayList(java.util.List<java.lang.String> from)
get
public java.lang.String get(int index)
- Specified by:
get in interface java.util.List<java.lang.String>- Specified by:
get in class java.util.AbstractList<java.lang.String>
size
public int size()
- Specified by:
size in interface java.util.Collection<java.lang.String>- Specified by:
size in interface java.util.List<java.lang.String>- Specified by:
size in class java.util.AbstractCollection<java.lang.String>
set
public java.lang.String set(int index,
java.lang.String s)
- Specified by:
set in interface java.util.List<java.lang.String>- Overrides:
set in class java.util.AbstractList<java.lang.String>
add
public void add(int index,
java.lang.String element)
- Specified by:
add in interface java.util.List<java.lang.String>- Overrides:
add in class java.util.AbstractList<java.lang.String>
addAll
public boolean addAll(int index,
java.util.Collection<? extends java.lang.String> c)
- Specified by:
addAll in interface java.util.List<java.lang.String>- Overrides:
addAll in class java.util.AbstractList<java.lang.String>
remove
public java.lang.String remove(int index)
- Specified by:
remove in interface java.util.List<java.lang.String>- Overrides:
remove in class java.util.AbstractList<java.lang.String>
clear
public void clear()
- Specified by:
clear in interface java.util.Collection<java.lang.String>- Specified by:
clear in interface java.util.List<java.lang.String>- Overrides:
clear in class java.util.AbstractList<java.lang.String>
add
public void add(ByteString element)
- Description copied from interface:
LazyStringList
- Appends the specified element to the end of this list (optional
operation).
- Specified by:
add in interface LazyStringList
- Parameters:
element - element to be appended to this list
getByteString
public ByteString getByteString(int index)
- Description copied from interface:
LazyStringList
- Returns the element at the specified position in this list as a ByteString.
- Specified by:
getByteString in interface LazyStringList
- Parameters:
index - index of the element to return
- Returns:
- the element at the specified position in this list
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