@GwtCompatible public abstract class ForwardingTable<R,C,V> extends ForwardingObject implements Table<R,C,V>
Table.Cell<R,C,V>| Modifier | Constructor and Description |
|---|---|
protected |
ForwardingTable()
Constructor for use by subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
Set<Table.Cell<R,C,V>> |
cellSet()
Returns a set of all row key / column key / value triplets.
|
void |
clear()
Removes all mappings from the table.
|
Map<R,V> |
column(C columnKey)
Returns a view of all mappings that have the given column key.
|
Set<C> |
columnKeySet()
Returns a set of column keys that have one or more values in the table.
|
Map<C,Map<R,V>> |
columnMap()
Returns a view that associates each column key with the corresponding map
from row keys to values.
|
boolean |
contains(Object rowKey,
Object columnKey)
Returns
true if the table contains a mapping with the specified
row and column keys. |
boolean |
containsColumn(Object columnKey)
Returns
true if the table contains a mapping with the specified
column. |
boolean |
containsRow(Object rowKey)
Returns
true if the table contains a mapping with the specified
row key. |
boolean |
containsValue(Object value)
Returns
true if the table contains a mapping with the specified
value. |
protected abstract Table<R,C,V> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
V |
get(Object rowKey,
Object columnKey)
Returns the value corresponding to the given row and column keys, or
null if no such mapping exists. |
int |
hashCode()
Returns a hash code value for the object.
|
boolean |
isEmpty()
Returns
true if the table contains no mappings. |
V |
put(R rowKey,
C columnKey,
V value)
Associates the specified value with the specified keys.
|
void |
putAll(Table<? extends R,? extends C,? extends V> table)
Copies all mappings from the specified table to this table.
|
V |
remove(Object rowKey,
Object columnKey)
Removes the mapping, if any, associated with the given keys.
|
Map<C,V> |
row(R rowKey)
Returns a view of all mappings that have the given row key.
|
Set<R> |
rowKeySet()
Returns a set of row keys that have one or more values in the table.
|
Map<R,Map<C,V>> |
rowMap()
Returns a view that associates each row key with the corresponding map from
column keys to values.
|
int |
size()
Returns the number of row key / column key / value mappings in the table.
|
Collection<V> |
values()
Returns a collection of all values, which may contain duplicates.
|
toStringprotected ForwardingTable()
protected abstract Table<R,C,V> delegate()
ForwardingObjectForwardingSet.delegate(). Concrete subclasses override this method to supply
the instance being decorated.delegate in class ForwardingObjectpublic Set<Table.Cell<R,C,V>> cellSet()
Tableadd or addAll methods.public void clear()
Tablepublic Map<R,V> column(C columnKey)
TableChanges to the returned map will update the underlying table, and vice versa.
public Set<C> columnKeySet()
TablecolumnKeySet in interface Table<R,C,V>public Map<C,Map<R,V>> columnMap()
Tableput() or putAll(),
or setValue() on its entries.
In contrast, the maps returned by columnMap().get() have the
same behavior as those returned by Table.column(C). Those maps may support
setValue(), put(), and putAll().
public boolean contains(Object rowKey, Object columnKey)
Tabletrue if the table contains a mapping with the specified
row and column keys.public boolean containsColumn(Object columnKey)
Tabletrue if the table contains a mapping with the specified
column.containsColumn in interface Table<R,C,V>columnKey - key of column to search forpublic boolean containsRow(Object rowKey)
Tabletrue if the table contains a mapping with the specified
row key.containsRow in interface Table<R,C,V>rowKey - key of row to search forpublic boolean containsValue(Object value)
Tabletrue if the table contains a mapping with the specified
value.containsValue in interface Table<R,C,V>value - value to search forpublic V get(Object rowKey, Object columnKey)
Tablenull if no such mapping exists.public boolean isEmpty()
Tabletrue if the table contains no mappings.public V put(R rowKey, C columnKey, V value)
Tableput in interface Table<R,C,V>rowKey - row key that the value should be associated withcolumnKey - column key that the value should be associated withvalue - value to be associated with the specified keysnull if
no mapping existed for the keyspublic void putAll(Table<? extends R,? extends C,? extends V> table)
TableTable.put(R, C, V) with each row key / column key / value
mapping in table.public V remove(Object rowKey, Object columnKey)
Tablepublic Map<C,V> row(R rowKey)
TableChanges to the returned map will update the underlying table, and vice versa.
public Set<R> rowKeySet()
Tablepublic Map<R,Map<C,V>> rowMap()
Tableput() or putAll(), or
setValue() on its entries.
In contrast, the maps returned by rowMap().get() have the same
behavior as those returned by Table.row(R). Those maps may support setValue(), put(), and putAll().
public int size()
Tablepublic Collection<V> values()
Tablepublic boolean equals(Object obj)
java.lang.Object
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode method, which states
that equal objects must have equal hash codes.
public int hashCode()
java.lang.ObjectHashMap.
The general contract of hashCode is:
hashCode method
must consistently return the same integer, provided no information
used in equals comparisons on the object is modified.
This integer need not remain consistent from one execution of an
application to another execution of the same application.
equals(Object)
method, then calling the hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by
class Object does return distinct integers for distinct
objects. (This is typically implemented by converting the internal
address of the object into an integer, but this implementation
technique is not required by the
JavaTM programming language.)
hashCode in interface Table<R,C,V>hashCode in class ObjectObject.equals(java.lang.Object),
System.identityHashCode(java.lang.Object)Copyright © 2010-2013. All Rights Reserved.