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## org.apache.cassandra.db
Class ThreadSafeSortedColumns

    java.lang.Object
      org.apache.cassandra.db.AbstractThreadUnsafeSortedColumns
          org.apache.cassandra.db.ThreadSafeSortedColumns

All Implemented Interfaces:
  java.lang.Iterable<IColumn>, ISortedColumns, IIterableColumns

    public class ThreadSafeSortedColumns

extends AbstractThreadUnsafeSortedColumns
implements ISortedColumns

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.db.ISortedColumns
`ISortedColumns.DeletionInfo, ISortedColumns.Factory`

Field Summary
`static ISortedColumns.Factory` | `factory`

Method Summary
`void` | `addAll(ISortedColumns cm, Allocator allocator, com.google.common.base.Function<IColumn,IColumn> transformation)` We need to go through each column in the column container and resolve it before adding
`long` | `addAllWithSizeDelta(ISortedColumns cm, Allocator allocator, com.google.common.base.Function<IColumn,IColumn> transformation)` Adds all the columns of a given column map to this column map.
`void` | `addColumn(IColumn column, Allocator allocator)` Adds a column to this column map.
`void` | `clear()` Clear this column map, removing all columns.
`ISortedColumns` | `cloneMe()` Shallow cloning of the column map.
`static ISortedColumns.Factory` | `factory()`
`IColumn` | `getColumn(java.nio.ByteBuffer name)` Get a column given its name, returning null if the column is not present.
`java.util.SortedSet<java.nio.ByteBuffer>` | `getColumnNames()` Returns a set with the names of columns in this column map.
`AbstractType<?>` | `getComparator()`
`ISortedColumns.Factory` | `getFactory()` Returns the factory used for this ISortedColumns implementation.
`java.util.Collection<IColumn>` | `getReverseSortedColumns()` Returns the columns of this column map as a collection.
`java.util.Collection<IColumn>` | `getSortedColumns()` Returns the columns of this column map as a collection.
`boolean` | `isInsertReversed()` Returns if this map only support inserts in reverse order.
`java.util.Iterator<IColumn>` | `iterator()`
`java.util.Iterator<IColumn>` | `iterator(java.nio.ByteBuffer start)` Returns an iterator over the columns of this map starting from the first column whose name is equal or greater than @param start.
`void` | `removeColumn(java.nio.ByteBuffer name)` Remove if present a column by name.
`boolean` | `replace(IColumn oldColumn, IColumn newColumn)` Replace oldColumn if present by newColumn.
`java.util.Iterator<IColumn>` | `reverseIterator()` Returns an iterator that iterates over the columns of this map in reverse order.
`java.util.Iterator<IColumn>` | `reverseIterator(java.nio.ByteBuffer start)` Returns a reversed iterator over the columns of this map starting from the last column whose name is equal or lesser than @param start.
`int` | `size()` Returns the number of columns in this map.

Methods inherited from class org.apache.cassandra.db.AbstractThreadUnsafeSortedColumns
`delete, getDeletionInfo, getEstimatedColumnCount, isEmpty, maybeResetDeletionTimes, retainAll`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.cassandra.db.ISortedColumns
`delete, getDeletionInfo, isEmpty, maybeResetDeletionTimes, retainAll`

Methods inherited from interface org.apache.cassandra.io.util.IIterableColumns
`getEstimatedColumnCount`

Field Detail

### factory

    public static final ISortedColumns.Factory factory

Method Detail

### factory

    public static ISortedColumns.Factory factory()

### getComparator

    public AbstractType<?> getComparator()

  Specified by:
    `getComparator` in interface `IIterableColumns`

### getFactory

    public ISortedColumns.Factory getFactory()

  Description copied from interface: `ISortedColumns`
  Returns the factory used for this ISortedColumns implementation.

  Specified by:
    `getFactory` in interface `ISortedColumns`

### cloneMe

    public ISortedColumns cloneMe()

  Description copied from interface: `ISortedColumns`
  Shallow cloning of the column map.

  Specified by:
    `cloneMe` in interface `ISortedColumns`

### isInsertReversed

    public boolean isInsertReversed()

  Description copied from interface: `ISortedColumns`
  Returns if this map only support inserts in reverse order.

  Specified by:
    `isInsertReversed` in interface `ISortedColumns`

### addColumn

    public void addColumn(IColumn column,
                          Allocator allocator)

  Description copied from interface: `ISortedColumns`
  Adds a column to this column map. If a column with the same name is already present in the map, it will be replaced by the newly added column.

  Specified by:
    `addColumn` in interface `ISortedColumns`

### addAll

    public void addAll(ISortedColumns cm,
                       Allocator allocator,
                       com.google.common.base.Function<IColumn,IColumn> transformation)

  We need to go through each column in the column container and resolve it before adding

  Specified by:
    `addAll` in interface `ISortedColumns`
  Specified by:
    `addAll` in class `AbstractThreadUnsafeSortedColumns`

### addAllWithSizeDelta

    public long addAllWithSizeDelta(ISortedColumns cm,
                                    Allocator allocator,
                                    com.google.common.base.Function<IColumn,IColumn> transformation)

  Description copied from interface: `ISortedColumns`
  Adds all the columns of a given column map to this column map. This is equivalent to: `for (Column c : cm) add(c);` but is potentially faster.

  Specified by:
    `addAllWithSizeDelta` in interface `ISortedColumns`
  Overrides:
    `addAllWithSizeDelta` in class `AbstractThreadUnsafeSortedColumns`
  Returns:
    the difference in size seen after merging the given columns

### replace

    public boolean replace(IColumn oldColumn,
                           IColumn newColumn)

  Description copied from interface: `ISortedColumns`
  Replace oldColumn if present by newColumn. Returns true if oldColumn was present and thus replaced. oldColumn and newColumn should have the same name.

  Specified by:
    `replace` in interface `ISortedColumns`

### getColumn

    public IColumn getColumn(java.nio.ByteBuffer name)

  Description copied from interface: `ISortedColumns`
  Get a column given its name, returning null if the column is not present.

  Specified by:
    `getColumn` in interface `ISortedColumns`

### removeColumn

    public void removeColumn(java.nio.ByteBuffer name)

  Description copied from interface: `ISortedColumns`
  Remove if present a column by name.

  Specified by:
    `removeColumn` in interface `ISortedColumns`

### clear

    public void clear()

  Description copied from interface: `ISortedColumns`
  Clear this column map, removing all columns.

  Specified by:
    `clear` in interface `ISortedColumns`

### size

    public int size()

  Description copied from interface: `ISortedColumns`
  Returns the number of columns in this map.

  Specified by:
    `size` in interface `ISortedColumns`

### getSortedColumns

    public java.util.Collection<IColumn> getSortedColumns()

  Description copied from interface: `ISortedColumns`
  Returns the columns of this column map as a collection. The columns in the returned collection should be sorted as the columns in this map.

  Specified by:
    `getSortedColumns` in interface `ISortedColumns`

### getReverseSortedColumns

    public java.util.Collection<IColumn> getReverseSortedColumns()

  Description copied from interface: `ISortedColumns`
  Returns the columns of this column map as a collection. The columns in the returned collection should be sorted in reverse order of the columns in this map.

  Specified by:
    `getReverseSortedColumns` in interface `ISortedColumns`

### getColumnNames

    public java.util.SortedSet<java.nio.ByteBuffer> getColumnNames()

  Description copied from interface: `ISortedColumns`
  Returns a set with the names of columns in this column map. The resulting set is sorted and the order is the one of the columns in this column map.

  Specified by:
    `getColumnNames` in interface `ISortedColumns`

### iterator

    public java.util.Iterator<IColumn> iterator()

  Specified by:
    `iterator` in interface `java.lang.Iterable<IColumn>`

### reverseIterator

    public java.util.Iterator<IColumn> reverseIterator()

  Description copied from interface: `ISortedColumns`
  Returns an iterator that iterates over the columns of this map in reverse order.

  Specified by:
    `reverseIterator` in interface `ISortedColumns`

### iterator

    public java.util.Iterator<IColumn> iterator(java.nio.ByteBuffer start)

  Description copied from interface: `ISortedColumns`
  Returns an iterator over the columns of this map starting from the first column whose name is equal or greater than @param start.

  Specified by:
    `iterator` in interface `ISortedColumns`

### reverseIterator

    public java.util.Iterator<IColumn> reverseIterator(java.nio.ByteBuffer start)

  Description copied from interface: `ISortedColumns`
  Returns a reversed iterator over the columns of this map starting from the last column whose name is equal or lesser than @param start.

  Specified by:
    `reverseIterator` in interface `ISortedColumns`

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Copyright © 2013 The Apache Software Foundation