Module dev.metaschema.core

Package dev.metaschema.core.qname

Class NamespaceCache

java.lang.Object

dev.metaschema.core.qname.NamespaceCache

public final class NamespaceCache
extends Object

An integer-based cache of namespaces to reduce the memory footprint of namespaces used by reusing instances with the same namespace.

Method Summary

Modifier and Type	Method	Description
Optional<String>	get(int index)	Lookup the namespace using the index value for an existing namespace.
Optional<Integer>	get(String namespace)	Lookup the index value for an existing namespace.
Optional<URI>	getAsURI(int index)	Lookup the namespace using the index value for an existing namespace.
int	indexOf(String namespace)	Get the index value of the provided namespace.
static NamespaceCache	instance()	Get the singleton instance.

Methods inherited from class java.lang.Object

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

Method Details

instance

@NonNull
public static NamespaceCache instance()

Get the singleton instance.

Returns:

the singleton instance

indexOf

public int indexOf(@NonNull
 String namespace)

Get the index value of the provided namespace.

Parameters:

namespace - the namespace

Returns:

the index value

get

@NonNull
public Optional<Integer> get(@NonNull
 String namespace)

Lookup the index value for an existing namespace.

Parameters:

namespace - the namespace to lookup

Returns:

an optional containing the index value, if it exists

get

@NonNull
public Optional<String> get(int index)

Lookup the namespace using the index value for an existing namespace.

Parameters:

index - the index value to lookup

Returns:

an optional containing the namespace, if the index value exists

getAsURI

@NonNull
public Optional<URI> getAsURI(int index)

Lookup the namespace using the index value for an existing namespace.

Parameters:

index - the index value to lookup

Returns:

an optional containing the namespace as a URI, if the index value exists