Material properties of diamond these are known as ballas and are important to industry as they lack the cleavage planes of single-crystal diamond. Carbonado is a similar opaque microcrystalline form which occurs in shapeless masses. Like ballas diamond, carbonado lacks cleavage planes and its specific gravity varies widely from 2.9 to 3.5. Bort diamonds, found in Brazil, Venezuela, and Guyana, are the most common type of industrial-grade diamond. They are also polycrystalline and often poorly crystallized; they are translucent and cleave easily. Because of its great hardness and strong molecular bonding, a cut diamond's facets and facet edges appear the flattest and sharpest. A
Carbonado (Java) and hashCode are also generated. This greatly simplifies the process of defining new entities, since no boilerplate code needs to be written. The process of loading a Storable by key starts by calling a factory method to create an uninitialized instance: Next, the key properties are set and load is called: A "Repository" is a gateway to the underlying database. A few core implementations are available, which include: In addition, composite Repositories exist which support simple replication and logging. All Repositories are created using a builder pattern. Each type of builder supports options specific to the Repository type. When a