Systems and methods for managing databases

A non-transitory computer-readable medium comprising program code for causing a processor to execute a method, the program code comprising:

• program code for executing an application operating environment;
• program code for allocating an application operating environment memory from a processor-addressable memory to said application operating environment, and
• wherein the program code for executing the application operating environment comprises:
• program code for allocating a database image memory associated with said application operating environment memory;
• program code for maintaining a database of objects in said database image memory, said database of objects in said database image memory comprising master storage of one or more objects;
• program code for allocating a first application memory from said application operating environment memory to a first application executed within said application operating environment memory, said first application memory process-isolated from said database image memory;
• program code for, upon an instantiation of a first non-database object by said first application, allocating memory in said first application memory for said first non-database object;
• program code for, upon an access operation on an instance attribute of said first non-database object by said first application, providing to said first application a first processor-addressable memory address in said first application memory and direct access to data of said non-database object by using said first processor-addressable memory address;
• program code for, upon instantiation of a database object by said first application, allocating memory in said database image memory for said database object, said database image memory comprising master storage for said database object;
• program code for, upon an instruction to obtain said database object by code of said first application, providing to said first application a reference to said database object;
• program code for, upon an access operation on an instance attribute of said database object by said first application, providing to said first application a second processor-addressable memory address in said database image memory and provide direct access to said database object by using said second processor-addressable memory address in said database image memory;
• provide the second processor-addressable memory address to a first code segment of said first application in a first transactional scope in said application operating environment, said first code segment provided with direct access to update said instance attribute of said database object in said first transactional scope using said second processor-addressable memory address, said first code segment provided with direct access to said instance attribute of said database object by said application operating environment;
• program code for providing said updated instance attribute to said first code segment in said first transactional scope after said update;
• commit said updated instance attribute responsive to said first code segment closing said first transactional scope;
• provide a third processor-addressable memory address to an unmodified value of said instance attribute to a second code segment of a second application in a second transactional scope in said application operating environment before said commit;
• and
• provide said second processor-addressable memory address to said updated value of said instance attribute to a third code segment of said second application in a third transactional scope in said application operating environment, said third transactional scope initiated after said commit.