Package org.apache.calcite.schema.lookup

Class IgnoreCaseLookup<T>

java.lang.Object

org.apache.calcite.schema.lookup.IgnoreCaseLookup<T>

Type Parameters:

T - Element type

All Implemented Interfaces:

Lookup<T>

Direct Known Subclasses:

CompatibilityLookup

public abstract class IgnoreCaseLookup<T>
extends Object
implements Lookup<T>

An abstract base class for lookups implementing case insensitive lookup.

Constructor Summary

Constructors

Constructor	Description
IgnoreCaseLookup()

Method Summary

Modifier and Type	Method	Description
abstract @Nullable T	get(String name)	Returns a named entity with a given name, or null if not found.
@Nullable Named<T>	getIgnoreCase(String name)	Returns a named entity with a given name ignoring the case, or null if not found.
abstract Set<String>	getNames(LikePattern pattern)	Returns the names of the entities in matching pattern.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.schema.lookup.Lookup

map

Constructor Details

IgnoreCaseLookup

public IgnoreCaseLookup()

Method Details

get

public abstract @Nullable T get(String name)

Returns a named entity with a given name, or null if not found.

Specified by:

get in interface Lookup<T>

Parameters:

name - Name

Returns:

Entity with the specified name, or null when the entity is not found.

getIgnoreCase

public @Nullable Named<T> getIgnoreCase(String name)

Returns a named entity with a given name ignoring the case, or null if not found.

Specified by:

getIgnoreCase in interface Lookup<T>

Parameters:

name - Name

Returns:

Entity with the specified name, or null when the entity is not found.

getNames

public abstract Set<String> getNames(LikePattern pattern)

Description copied from interface: Lookup

Returns the names of the entities in matching pattern. The search is always case sensitive. This is caused by the fact that DatabaseMetaData.getTables(...) doesn't support case insensitive lookups.

Specified by:

getNames in interface Lookup<T>

Returns:

The names of all entities matching the pattern.