Package org.apache.ignite.internal.cache.query.index.sorted.maintenance

Class MaintenanceRebuildIndexUtils

java.lang.Object

org.apache.ignite.internal.cache.query.index.sorted.maintenance.MaintenanceRebuildIndexUtils

public class MaintenanceRebuildIndexUtils
extends Object

Utility methods for the index rebuild maintenance task.

Field Summary

Fields

Modifier and Type	Field	Description
static String	INDEX_REBUILD_MNTC_TASK_NAME	Index rebuild maintenance task name.
static String	INDEX_REBUILD_PARAMETER_SEPARATOR	Separator for index rebuild maintenance task parameters.
static String	INDEX_REBUILD_PARAMETER_SEPARATOR_REGEX	Regex for INDEX_REBUILD_PARAMETER_SEPARATOR.

Constructor Summary

Constructors

Constructor	Description
MaintenanceRebuildIndexUtils()

Method Summary

Modifier and Type	Method	Description
static MaintenanceTask	mergeTasks(MaintenanceTask oldTask, MaintenanceTask newTask)	Merges two index rebuild maintenance tasks concatenating their parameters.
static List<MaintenanceRebuildIndexTarget>	parseMaintenanceTaskParameters(@Nullable String parameters)	Parses MaintenanceTask.parameters() to a list of a MaintenanceRebuildIndexTargets.
static MaintenanceTask	toMaintenanceTask(int cacheId, String idxName)	Constructs an index rebuild maintenance task.
static MaintenanceTask	toMaintenanceTask(Map<Integer,Set<String>> cacheToIndexes)	Constructs an index rebuild maintenance task based on a map cacheId -> indexes.

Methods inherited from class java.lang.Object

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

Field Detail

INDEX_REBUILD_MNTC_TASK_NAME

public static final String INDEX_REBUILD_MNTC_TASK_NAME

Index rebuild maintenance task name.

See Also:

Constant Field Values

INDEX_REBUILD_PARAMETER_SEPARATOR

public static final String INDEX_REBUILD_PARAMETER_SEPARATOR

Separator for index rebuild maintenance task parameters.

See Also:

Constant Field Values

INDEX_REBUILD_PARAMETER_SEPARATOR_REGEX

public static final String INDEX_REBUILD_PARAMETER_SEPARATOR_REGEX

Regex for INDEX_REBUILD_PARAMETER_SEPARATOR.

See Also:

Constant Field Values

Constructor Detail

MaintenanceRebuildIndexUtils

public MaintenanceRebuildIndexUtils()

Method Detail

parseMaintenanceTaskParameters

public static List<MaintenanceRebuildIndexTarget> parseMaintenanceTaskParameters(@Nullable
                                                                                 @Nullable String parameters)

Parses MaintenanceTask.parameters() to a list of a MaintenanceRebuildIndexTargets.

Parameters:

parameters - Task's parameters.

Returns:

List of MaintenanceRebuildIndexTargets.

toMaintenanceTask

public static MaintenanceTask toMaintenanceTask(int cacheId,
                                                String idxName)

Constructs an index rebuild maintenance task.

Parameters:

cacheId - Cache id.

idxName - Index name.

Returns:

Maintenance task.

toMaintenanceTask

public static MaintenanceTask toMaintenanceTask(Map<Integer,Set<String>> cacheToIndexes)

Constructs an index rebuild maintenance task based on a map cacheId -> indexes. For example:

 
 Map<Integer, Set<String>> cacheToIndexes = new HashMap<>();
 cacheToIndexes.put(CU.cacheId("some-cache"), singleton("some-index"));
 MaintenanceTask task = toMaintenanceTask(cacheToIndexes);
 
 

Parameters:

cacheToIndexes - cacheId -> indexes map.

Returns:

Maintenance task.

mergeTasks

public static MaintenanceTask mergeTasks(MaintenanceTask oldTask,
                                         MaintenanceTask newTask)

Merges two index rebuild maintenance tasks concatenating their parameters.

Parameters:

oldTask - Old task

newTask - New task.

Returns:

Merged task.