org.modeshape.jcr.spi.index

Interface Index

All Superinterfaces:

Filter

public interface Index
extends Filter

An index used by the query system to quickly provide the set of NodeKeys that satisfy a particular portion of a query.

Each time ModeShape uses this index, it calls the Filter.filter(IndexConstraints) method with a set of IndexConstraints to obtain an Filter.Results instance that ModeShape will then use to access the batches of node keys that satisfy the constraints. Note that once an Filter.Results is obtained, it may be called zero or more times but will always be closed.

See Also:

IndexProvider.getIndex(String,String)

Nested Class Summary

Nested classes/interfaces inherited from interface org.modeshape.jcr.spi.index.provider.Filter

Filter.Results

Method Summary

Modifier and Type	Method and Description
String	getName() Get the name of this index.
String	getProviderName() Get the name of the IndexProvider that owns this index.
boolean	isEnabled() Determine if this index is enabled for use.
boolean	supportsFullTextConstraints() Return whether this index can use full-text search constraints.

Methods inherited from interface org.modeshape.jcr.spi.index.provider.Filter

filter

Method Detail

getProviderName

String getProviderName()

Get the name of the IndexProvider that owns this index.

Returns:

the provider's name; never null

getName

String getName()

Get the name of this index.

Returns:

the index name; never null

supportsFullTextConstraints

boolean supportsFullTextConstraints()

Return whether this index can use full-text search constraints. Such indexes may be used in some queries even if they are not the lowest-cost option.

Returns:

true if this index can use full-text search constraints, or false otherwise.

isEnabled

boolean isEnabled()

Determine if this index is enabled for use.

Returns:

true if enabled, or false otherwise