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

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