Package com.google.common.collect

Class ImmutableTable<R,C,V>

java.lang.Object

com.google.common.collect.AbstractTable<R,C,V>

com.google.common.collect.ImmutableTable<R,C,V>

All Implemented Interfaces:

Table<R,C,V>, java.io.Serializable

Direct Known Subclasses:

RegularImmutableTable, SingletonImmutableTable

public abstract class ImmutableTable<R,C,V>
extends AbstractTable<R,C,V>
implements java.io.Serializable

A Table whose contents will never change, with many other important properties detailed at ImmutableCollection.

See the Guava User Guide article on immutable collections.

Since:

11.0

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ImmutableTable.Builder<R,C,V>	A builder for creating immutable table instances, especially public static final tables ("constant tables").
(package private) static class	ImmutableTable.SerializedForm	Serialized type for all ImmutableTable instances.

Nested classes/interfaces inherited from class com.google.common.collect.AbstractTable

AbstractTable.CellSet, AbstractTable.Values

Nested classes/interfaces inherited from interface com.google.common.collect.Table

Table.Cell<R,C,V>

Constructor Summary

Constructors

Constructor	Description
ImmutableTable()

Method Summary

Modifier and Type	Method	Description
static <R,C,V> ImmutableTable.Builder<R,C,V>	builder()	Returns a new builder.
(package private) UnmodifiableIterator<Table.Cell<R,C,V>>	cellIterator()
(package private) static <R,C,V> Table.Cell<R,C,V>	cellOf(R rowKey, C columnKey, V value)	Verifies that rowKey, columnKey and value are non-null, and returns a new entry with those values.
ImmutableSet<Table.Cell<R,C,V>>	cellSet()	Returns a set of all row key / column key / value triplets.
(package private) java.util.Spliterator<Table.Cell<R,C,V>>	cellSpliterator()
void	clear()	Deprecated. Unsupported operation.
ImmutableMap<R,V>	column(C columnKey)	Returns a view of all mappings that have the given column key.
ImmutableSet<C>	columnKeySet()	Returns a set of column keys that have one or more values in the table.
abstract ImmutableMap<C,java.util.Map<R,V>>	columnMap()	Returns a view that associates each column key with the corresponding map from row keys to values.
boolean	contains(java.lang.Object rowKey, java.lang.Object columnKey)	Returns true if the table contains a mapping with the specified row and column keys.
boolean	containsValue(java.lang.Object value)	Returns true if the table contains a mapping with the specified value.
static <R,C,V> ImmutableTable<R,C,V>	copyOf(Table<? extends R,? extends C,? extends V> table)	Returns an immutable copy of the provided table.
(package private) static <R,C,V> ImmutableTable<R,C,V>	copyOf(java.lang.Iterable<? extends Table.Cell<? extends R,? extends C,? extends V>> cells)
(package private) abstract ImmutableSet<Table.Cell<R,C,V>>	createCellSet()
(package private) abstract ImmutableTable.SerializedForm	createSerializedForm()	Creates the common serialized form for this table.
(package private) abstract ImmutableCollection<V>	createValues()
static <R,C,V> ImmutableTable<R,C,V>	of()	Returns an empty immutable table.
static <R,C,V> ImmutableTable<R,C,V>	of(R rowKey, C columnKey, V value)	Returns an immutable table containing a single cell.
V	put(R rowKey, C columnKey, V value)	Deprecated. Unsupported operation.
void	putAll(Table<? extends R,? extends C,? extends V> table)	Deprecated. Unsupported operation.
V	remove(java.lang.Object rowKey, java.lang.Object columnKey)	Deprecated. Unsupported operation.
ImmutableMap<C,V>	row(R rowKey)	Returns a view of all mappings that have the given row key.
ImmutableSet<R>	rowKeySet()	Returns a set of row keys that have one or more values in the table.
abstract ImmutableMap<R,java.util.Map<C,V>>	rowMap()	Returns a view that associates each row key with the corresponding map from column keys to values.
static <T,R,C,V> java.util.stream.Collector<T,?,ImmutableTable<R,C,V>>	toImmutableTable(java.util.function.Function<? super T,? extends R> rowFunction, java.util.function.Function<? super T,? extends C> columnFunction, java.util.function.Function<? super T,? extends V> valueFunction)	Returns a Collector that accumulates elements into an ImmutableTable.
static <T,R,C,V> java.util.stream.Collector<T,?,ImmutableTable<R,C,V>>	toImmutableTable(java.util.function.Function<? super T,? extends R> rowFunction, java.util.function.Function<? super T,? extends C> columnFunction, java.util.function.Function<? super T,? extends V> valueFunction, java.util.function.BinaryOperator<V> mergeFunction)	Returns a Collector that accumulates elements into an ImmutableTable.
ImmutableCollection<V>	values()	Returns a collection of all values, which may contain duplicates.
(package private) java.util.Iterator<V>	valuesIterator()
(package private) java.lang.Object	writeReplace()

Methods inherited from class com.google.common.collect.AbstractTable

containsColumn, containsRow, equals, get, hashCode, isEmpty, toString, valuesSpliterator

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.common.collect.Table

size

Constructor Detail

ImmutableTable

ImmutableTable()

Method Detail

toImmutableTable

public static <T,R,C,V> java.util.stream.Collector<T,?,ImmutableTable<R,C,V>> toImmutableTable(java.util.function.Function<? super T,? extends R> rowFunction,
                                                                                                                                         java.util.function.Function<? super T,? extends C> columnFunction,
                                                                                                                                         java.util.function.Function<? super T,? extends V> valueFunction)

Returns a Collector that accumulates elements into an ImmutableTable. Each input element is mapped to one cell in the returned table, with the rows, columns, and values generated by applying the specified functions.

The returned Collector will throw a NullPointerException at collection time if the row, column, or value functions return null on any input.

Since:

21.0

toImmutableTable

public static <T,R,C,V> java.util.stream.Collector<T,?,ImmutableTable<R,C,V>> toImmutableTable(java.util.function.Function<? super T,? extends R> rowFunction,
                                                                                                                                         java.util.function.Function<? super T,? extends C> columnFunction,
                                                                                                                                         java.util.function.Function<? super T,? extends V> valueFunction,
                                                                                                                                         java.util.function.BinaryOperator<V> mergeFunction)

Returns a Collector that accumulates elements into an ImmutableTable. Each input element is mapped to one cell in the returned table, with the rows, columns, and values generated by applying the specified functions. If multiple inputs are mapped to the same row and column pair, they will be combined with the specified merging function in encounter order.

The returned Collector will throw a NullPointerException at collection time if the row, column, value, or merging functions return null on any input.

Since:

21.0

of

public static <R,C,V> ImmutableTable<R,C,V> of()

Returns an empty immutable table.

of

public static <R,C,V> ImmutableTable<R,C,V> of(R rowKey,
                                                                       C columnKey,
                                                                       V value)

Returns an immutable table containing a single cell.

copyOf

public static <R,C,V> ImmutableTable<R,C,V> copyOf(Table<? extends R,? extends C,? extends V> table)

Returns an immutable copy of the provided table.

The Table.cellSet() iteration order of the provided table determines the iteration ordering of all views in the returned table. Note that some views of the original table and the copied table may have different iteration orders. For more control over the ordering, create a ImmutableTable.Builder and call ImmutableTable.Builder.orderRowsBy(java.util.Comparator<? super R>), ImmutableTable.Builder.orderColumnsBy(java.util.Comparator<? super C>), and ImmutableTable.Builder.putAll(com.google.common.collect.Table<? extends R, ? extends C, ? extends V>)

Despite the method name, this method attempts to avoid actually copying the data when it is safe to do so. The exact circumstances under which a copy will or will not be performed are undocumented and subject to change.

copyOf

static <R,C,V> ImmutableTable<R,C,V> copyOf(java.lang.Iterable<? extends Table.Cell<? extends R,? extends C,? extends V>> cells)

builder

public static <R,C,V> ImmutableTable.Builder<R,C,V> builder()

Returns a new builder. The generated builder is equivalent to the builder created by the ImmutableTable.Builder() constructor.

cellOf

static <R,C,V> Table.Cell<R,C,V> cellOf(R rowKey,
                                                                C columnKey,
                                                                V value)

Verifies that rowKey, columnKey and value are non-null, and returns a new entry with those values.

cellSet

public ImmutableSet<Table.Cell<R,C,V>> cellSet()

Description copied from interface: Table

Returns a set of all row key / column key / value triplets. Changes to the returned set will update the underlying table, and vice versa. The cell set does not support the add or addAll methods.

Specified by:

cellSet in interface Table<R,C,V>

Overrides:

cellSet in class AbstractTable<R,C,V>

Returns:

set of table cells consisting of row key / column key / value triplets

createCellSet

abstract ImmutableSet<Table.Cell<R,C,V>> createCellSet()

Overrides:

createCellSet in class AbstractTable<R,C,V>

cellIterator

final UnmodifiableIterator<Table.Cell<R,C,V>> cellIterator()

Specified by:

cellIterator in class AbstractTable<R,C,V>

cellSpliterator

final java.util.Spliterator<Table.Cell<R,C,V>> cellSpliterator()

Specified by:

cellSpliterator in class AbstractTable<R,C,V>

values

public ImmutableCollection<V> values()

Description copied from interface: Table

Returns a collection of all values, which may contain duplicates. Changes to the returned collection will update the underlying table, and vice versa.

Specified by:

values in interface Table<R,C,V>

Overrides:

values in class AbstractTable<R,C,V>

Returns:

collection of values

createValues

abstract ImmutableCollection<V> createValues()

Overrides:

createValues in class AbstractTable<R,C,V>

valuesIterator

final java.util.Iterator<V> valuesIterator()

Overrides:

valuesIterator in class AbstractTable<R,C,V>

column

public ImmutableMap<R,V> column(C columnKey)

Returns a view of all mappings that have the given column key. For each row key / column key / value mapping in the table with that column key, the returned map associates the row key with the value. If no mappings in the table have the provided column key, an empty map is returned.

Changes to the returned map will update the underlying table, and vice versa.

Specified by:

column in interface Table<R,C,V>

Parameters:

columnKey - key of column to search for in the table

Returns:

the corresponding map from row keys to values

Throws:

java.lang.NullPointerException - if columnKey is null

columnKeySet

public ImmutableSet<C> columnKeySet()

Description copied from interface: Table

Returns a set of column keys that have one or more values in the table. Changes to the set will update the underlying table, and vice versa.

Specified by:

columnKeySet in interface Table<R,C,V>

Overrides:

columnKeySet in class AbstractTable<R,C,V>

Returns:

set of column keys

columnMap

public abstract ImmutableMap<C,java.util.Map<R,V>> columnMap()

Returns a view that associates each column key with the corresponding map from row keys to values. Changes to the returned map will update this table. The returned map does not support put() 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().

The value Map<R, V> instances in the returned map are ImmutableMap instances as well.

Specified by:

columnMap in interface Table<R,C,V>

Returns:

a map view from each column key to a secondary map from row keys to values

row

public ImmutableMap<C,V> row(R rowKey)

Returns a view of all mappings that have the given row key. For each row key / column key / value mapping in the table with that row key, the returned map associates the column key with the value. If no mappings in the table have the provided row key, an empty map is returned.

Changes to the returned map will update the underlying table, and vice versa.

Specified by:

row in interface Table<R,C,V>

Parameters:

rowKey - key of row to search for in the table

Returns:

the corresponding map from column keys to values

Throws:

java.lang.NullPointerException - if rowKey is null

rowKeySet

public ImmutableSet<R> rowKeySet()

Description copied from interface: Table

Returns a set of row keys that have one or more values in the table. Changes to the set will update the underlying table, and vice versa.

Specified by:

rowKeySet in interface Table<R,C,V>

Overrides:

rowKeySet in class AbstractTable<R,C,V>

Returns:

set of row keys

rowMap

public abstract ImmutableMap<R,java.util.Map<C,V>> rowMap()

Returns a view that associates each row key with the corresponding map from column keys to values. Changes to the returned map will update this table. The returned map does not support put() 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().

The value Map<C, V> instances in the returned map are ImmutableMap instances as well.

Specified by:

rowMap in interface Table<R,C,V>

Returns:

a map view from each row key to a secondary map from column keys to values

contains

public boolean contains(java.lang.Object rowKey,
                        java.lang.Object columnKey)

Description copied from interface: Table

Returns true if the table contains a mapping with the specified row and column keys.

Specified by:

contains in interface Table<R,C,V>

Overrides:

contains in class AbstractTable<R,C,V>

Parameters:

rowKey - key of row to search for

columnKey - key of column to search for

containsValue

public boolean containsValue(java.lang.Object value)

Description copied from interface: Table

Returns true if the table contains a mapping with the specified value.

Specified by:

containsValue in interface Table<R,C,V>

Overrides:

containsValue in class AbstractTable<R,C,V>

Parameters:

value - value to search for

clear

@Deprecated
public final void clear()

Deprecated.

Unsupported operation.

Guaranteed to throw an exception and leave the table unmodified.

Specified by:

clear in interface Table<R,C,V>

Overrides:

clear in class AbstractTable<R,C,V>

Throws:

java.lang.UnsupportedOperationException - always

put

@Deprecated
public final V put(R rowKey,
                   C columnKey,
                   V value)

Deprecated.

Unsupported operation.

Guaranteed to throw an exception and leave the table unmodified.

Specified by:

put in interface Table<R,C,V>

Overrides:

put in class AbstractTable<R,C,V>

Parameters:

rowKey - row key that the value should be associated with

columnKey - column key that the value should be associated with

value - value to be associated with the specified keys

Returns:

the value previously associated with the keys, or null if no mapping existed for the keys

Throws:

java.lang.UnsupportedOperationException - always

putAll

@Deprecated
public final void putAll(Table<? extends R,? extends C,? extends V> table)

Deprecated.

Unsupported operation.

Guaranteed to throw an exception and leave the table unmodified.

Specified by:

putAll in interface Table<R,C,V>

Overrides:

putAll in class AbstractTable<R,C,V>

Parameters:

table - the table to add to this table

Throws:

java.lang.UnsupportedOperationException - always

remove

@Deprecated
public final V remove(java.lang.Object rowKey,
                      java.lang.Object columnKey)

Deprecated.

Unsupported operation.

Guaranteed to throw an exception and leave the table unmodified.

Specified by:

remove in interface Table<R,C,V>

Overrides:

remove in class AbstractTable<R,C,V>

Parameters:

rowKey - row key of mapping to be removed

columnKey - column key of mapping to be removed

Returns:

the value previously associated with the keys, or null if no such value existed

Throws:

java.lang.UnsupportedOperationException - always

createSerializedForm

abstract ImmutableTable.SerializedForm createSerializedForm()

Creates the common serialized form for this table.

writeReplace

final java.lang.Object writeReplace()