Norman Maurer 2d9e0f53a5 Better implementation of AttributeMap and also add hasAttr(...). See [#2439] ... Motivation: The old DefaultAttributeMap impl did more synchronization then needed and also did not expose a efficient way to check if an attribute exists with a specific key. Modifications: * Rewrite DefaultAttributeMap to not use IdentityHashMap and synchronization on the map directly. The new impl uses a combination of AtomicReferenceArray and synchronization per chain (linked-list). Also access the first Attribute per bucket can be done without any synchronization at all and just uses atomic operations. This should fit for most use-cases pretty weel. * Add hasAttr(...) implementation Result: It's now possible to check for the existence of a attribute without create one. Synchronization is per linked-list and the first entry can even be added via atomic operation.		2014-05-15 06:47:42 +02:00
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src	Better implementation of AttributeMap and also add hasAttr(...). See [#2439]	2014-05-15 06:47:42 +02:00
pom.xml	Update the version to 4.1.0.Alpha1-SNAPSHOT	2014-02-13 18:32:26 -08:00