org.apache.felix.eventadmin.impl.handler
Class CacheFilters

java.lang.Object
  org.apache.felix.eventadmin.impl.handler.CacheFilters

All Implemented Interfaces:

Filters

public class CacheFilters
extends java.lang.Object
implements Filters

This is an implementation of the Filters factory that uses a cache in order to speed-up filter creation.

Author:

Felix Project Team

Field Summary

Fields inherited from interface org.apache.felix.eventadmin.impl.handler.Filters

TRUE_FILTER

Constructor Summary

CacheFilters(CacheMap cache, org.osgi.framework.BundleContext context)
The constructor of this factory.

Method Summary

org.osgi.framework.Filter

createFilter(java.lang.String filter) Create a filter for the given filter string or return the TRUE_FILTER in case the string is null.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheFilters

public CacheFilters(CacheMap cache,
                    org.osgi.framework.BundleContext context)

The constructor of this factory. The cache is used to speed-up filter creation.

Parameters:

cache - The cache to use

context - The context of the bundle used to create the Filter objects

Method Detail

createFilter

public org.osgi.framework.Filter createFilter(java.lang.String filter)
                                       throws org.osgi.framework.InvalidSyntaxException

Create a filter for the given filter string or return the TRUE_FILTER in case the string is null.

Specified by:

createFilter in interface Filters

Parameters:

filter - The filter as a string

Returns:

The Filter of the filter string or the TRUE_FILTER if the filter string was null

Throws:

org.osgi.framework.InvalidSyntaxException - if BundleContext.createFilter() throws an InvalidSyntaxException

See Also:

Filters.createFilter(java.lang.String)