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 and 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 and Description
MaintenanceRebuildIndexUtils()

Method Summary

Modifier and Type	Method and 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.