org.h2.table

类 IndexHints

java.lang.Object

org.h2.table.IndexHints

public final class IndexHints
extends Object

Contains the hints for which index to use for a specific table. Currently allows a list of "use indexes" to be specified.

Use the factory method IndexHints.createUseIndexHints(listOfIndexes) to limit the query planner to only use specific indexes when determining which index to use for a table

方法概要

限定符和类型	方法和说明
boolean	allowIndex(Index index) Allow an index to be used.
static IndexHints	createUseIndexHints(LinkedHashSet<String> allowedIndexes) Create an index hint object.
Set<String>	getAllowedIndexes()
String	toString()

从类继承的方法 java.lang.Object

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

方法详细资料

createUseIndexHints

public static IndexHints createUseIndexHints(LinkedHashSet<String> allowedIndexes)

Create an index hint object.

参数:

allowedIndexes - the set of allowed indexes

返回:

the hint object

getAllowedIndexes

public Set<String> getAllowedIndexes()

toString

public String toString()

覆盖:

toString 在类中 Object

allowIndex

public boolean allowIndex(Index index)

Allow an index to be used.

参数:

index - the index

返回:

whether it was already allowed