org.apache.cassandra.db

## Class ColumnFamilyStoreCQLHelper

- java.lang.Object
- - org.apache.cassandra.db.ColumnFamilyStoreCQLHelper

-     public class ColumnFamilyStoreCQLHelper
      extends java.lang.Object

  Helper methods to represent CFMetadata and related objects in CQL format

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ColumnFamilyStoreCQLHelper()`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static java.util.List<java.lang.String>` | `dumpReCreateStatements(CFMetaData metadata)`
    `static java.lang.String` | `getCFMetadataAsCQL(CFMetaData metadata, boolean includeDroppedColumns)` Build a CQL String representation of Column Family Metadata
    `static java.util.List<java.lang.String>` | `getDroppedColumnsAsCQL(CFMetaData metadata)` Build a CQL String representation of Dropped Columns in the given Column Family.
    `static java.util.List<java.lang.String>` | `getIndexesAsCQL(CFMetaData metadata)` Build a CQL String representation of Indexes on columns in the given Column Family
    `static java.util.List<java.lang.String>` | `getUserTypesAsCQL(CFMetaData metadata)` Build a CQL String representation of User Types used in the given Column Family.
    `static boolean` | `isCqlCompatible(CFMetaData metaData)` Whether or not the given metadata is compatible / representable with CQL Language

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ColumnFamilyStoreCQLHelper

          public ColumnFamilyStoreCQLHelper()

  - ### Method Detail

    - #### dumpReCreateStatements

          public static java.util.List<java.lang.String> dumpReCreateStatements(CFMetaData metadata)

    - #### getCFMetadataAsCQL

          public static java.lang.String getCFMetadataAsCQL(CFMetaData metadata,
                                                            boolean includeDroppedColumns)

      Build a CQL String representation of Column Family Metadata

    - #### getUserTypesAsCQL

          public static java.util.List<java.lang.String> getUserTypesAsCQL(CFMetaData metadata)

      Build a CQL String representation of User Types used in the given Column Family. Type order is ensured as types are built incrementally: from the innermost (most nested) to the outermost.

    - #### getDroppedColumnsAsCQL

          public static java.util.List<java.lang.String> getDroppedColumnsAsCQL(CFMetaData metadata)

      Build a CQL String representation of Dropped Columns in the given Column Family. If the column was dropped once, but is now re-created `ADD` will be appended accordingly.

    - #### getIndexesAsCQL

          public static java.util.List<java.lang.String> getIndexesAsCQL(CFMetaData metadata)

      Build a CQL String representation of Indexes on columns in the given Column Family

    - #### isCqlCompatible

          public static boolean isCqlCompatible(CFMetaData metaData)

      Whether or not the given metadata is compatible / representable with CQL Language

Copyright © 2018 The Apache Software Foundation