Class ImmutableTable<R,​C,​V>

    • 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").
    • Method Summary

      All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static <R,​C,​V>
      ImmutableTable.Builder<R,​C,​V>
      builder()
      Returns a new builder.
      ImmutableSet<Table.Cell<R,​C,​V>> cellSet()
      Returns a set of all row key / column key / value triplets.
      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 containsColumn​(java.lang.Object columnKey)
      Returns true if the table contains a mapping with the specified column.
      boolean containsRow​(java.lang.Object rowKey)
      Returns true if the table contains a mapping with the specified row key.
      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.
      boolean equals​(java.lang.Object obj)
      Compares the specified object with this table for equality.
      V get​(java.lang.Object rowKey, java.lang.Object columnKey)
      Returns the value corresponding to the given row and column keys, or null if no such mapping exists.
      int hashCode()
      Returns the hash code for this table.
      boolean isEmpty()
      Returns true if the table contains no mappings.
      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 extends @Nullable java.lang.Object,​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 extends @Nullable java.lang.Object,​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.
      java.lang.String toString()
      Returns the string representation rowMap().toString().
      ImmutableCollection<V> values()
      Returns a collection of all values, which may contain duplicates.
      • 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
    • Method Detail

      • toImmutableTable

        public static <T extends @Nullable java.lang.Object,​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 extends @Nullable java.lang.Object,​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.

        Performance note: the instance returned is a singleton.

      • 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.
      • 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>
        Returns:
        set of table cells consisting of row key / column key / value triplets
      • values

        public ImmutableCollection<Vvalues()
        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>
        Returns:
        collection of values
      • column

        public ImmutableMap<R,​Vcolumn​(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<CcolumnKeySet()
        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>
        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,​Vrow​(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<RrowKeySet()
        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>
        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​(@CheckForNull
                                java.lang.Object rowKey,
                                @CheckForNull
                                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>
        Parameters:
        rowKey - key of row to search for
        columnKey - key of column to search for
      • containsValue

        public boolean containsValue​(@CheckForNull
                                     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>
        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>
        Throws:
        java.lang.UnsupportedOperationException - always
      • put

        @CanIgnoreReturnValue
        @Deprecated
        @CheckForNull
        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>
        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>
        Parameters:
        table - the table to add to this table
        Throws:
        java.lang.UnsupportedOperationException - always
      • remove

        @CanIgnoreReturnValue
        @Deprecated
        @CheckForNull
        public final V remove​(@CheckForNull
                              java.lang.Object rowKey,
                              @CheckForNull
                              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>
        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
      • containsRow

        public boolean containsRow​(@CheckForNull
                                   java.lang.Object rowKey)
        Description copied from interface: Table
        Returns true if the table contains a mapping with the specified row key.
        Specified by:
        containsRow in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
        Parameters:
        rowKey - key of row to search for
      • containsColumn

        public boolean containsColumn​(@CheckForNull
                                      java.lang.Object columnKey)
        Description copied from interface: Table
        Returns true if the table contains a mapping with the specified column.
        Specified by:
        containsColumn in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
        Parameters:
        columnKey - key of column to search for
      • get

        @CheckForNull
        public V get​(@CheckForNull
                     java.lang.Object rowKey,
                     @CheckForNull
                     java.lang.Object columnKey)
        Description copied from interface: Table
        Returns the value corresponding to the given row and column keys, or null if no such mapping exists.
        Specified by:
        get in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
        Parameters:
        rowKey - key of row to search for
        columnKey - key of column to search for
      • isEmpty

        public boolean isEmpty()
        Description copied from interface: Table
        Returns true if the table contains no mappings.
        Specified by:
        isEmpty in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
      • equals

        public boolean equals​(@CheckForNull
                              java.lang.Object obj)
        Description copied from interface: Table
        Compares the specified object with this table for equality. Two tables are equal when their cell views, as returned by Table.cellSet(), are equal.
        Specified by:
        equals in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
        Overrides:
        equals in class java.lang.Object
      • hashCode

        public int hashCode()
        Description copied from interface: Table
        Returns the hash code for this table. The hash code of a table is defined as the hash code of its cell view, as returned by Table.cellSet().
        Specified by:
        hashCode in interface Table<R extends @Nullable java.lang.Object,​C extends @Nullable java.lang.Object,​V extends @Nullable java.lang.Object>
        Overrides:
        hashCode in class java.lang.Object
      • toString

        public java.lang.String toString()
        Returns the string representation rowMap().toString().
        Overrides:
        toString in class java.lang.Object