Enum IndexingLevel
- java.lang.Object
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- java.lang.Enum<IndexingLevel>
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- org.eclipse.viatra.query.runtime.base.api.IndexingLevel
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<IndexingLevel>
public enum IndexingLevel extends java.lang.Enum<IndexingLevel>
The values of this enum denotes the level of indexing the base indexer is capable of.- Since:
- 1.4
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Enum Constant Summary
Enum Constants Enum Constant Description BOTH
Cardinality information is stored and live notifications are dispatchedFULL
Full indexing is performed, set of instances is availableNONE
No indexing is performedNOTIFICATIONS
Notifications are dispatched about the changesSTATISTICS
Only cardinality information is stored.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
hasInstances()
Tells whether the indexer shall perform instance indexingboolean
hasStatistics()
Tells whether the indexer shall perform separate statistics calculation for this levelIndexingLevel
merge(IndexingLevel other)
Merge this level with the given other level, The resulting indexing level will provide the functionality which conforms to both given levels.boolean
providesLevel(IndexingLevel level)
Returns whether the current indexing level includes all features from the parameter levelstatic IndexingLevel
toLevel(java.util.Set<IndexingService> services)
static IndexingLevel
toLevel(IndexingService service)
static IndexingLevel
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static IndexingLevel[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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NONE
public static final IndexingLevel NONE
No indexing is performed
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STATISTICS
public static final IndexingLevel STATISTICS
Only cardinality information is stored. This indexing level makes possible to calculate results ofNavigationHelper.countAllInstances(org.eclipse.emf.ecore.EClass)
,NavigationHelper.countFeatures(org.eclipse.emf.ecore.EStructuralFeature)
andNavigationHelper.countDataTypeInstances(org.eclipse.emf.ecore.EDataType)
with minimal memory footprint.
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NOTIFICATIONS
public static final IndexingLevel NOTIFICATIONS
Notifications are dispatched about the changes
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BOTH
public static final IndexingLevel BOTH
Cardinality information is stored and live notifications are dispatched
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FULL
public static final IndexingLevel FULL
Full indexing is performed, set of instances is available
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Method Detail
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values
public static IndexingLevel[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (IndexingLevel c : IndexingLevel.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static IndexingLevel valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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toLevel
public static IndexingLevel toLevel(IndexingService service)
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toLevel
public static IndexingLevel toLevel(java.util.Set<IndexingService> services)
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merge
public IndexingLevel merge(IndexingLevel other)
Merge this level with the given other level, The resulting indexing level will provide the functionality which conforms to both given levels.
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hasStatistics
public boolean hasStatistics()
Tells whether the indexer shall perform separate statistics calculation for this level
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hasInstances
public boolean hasInstances()
Tells whether the indexer shall perform instance indexing
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providesLevel
public boolean providesLevel(IndexingLevel level)
Returns whether the current indexing level includes all features from the parameter level- Since:
- 1.5
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