Data referencing within a database graph

A computerized method for managing a graph comprising:

• generating a cursor of the graph;
• navigating through the graph using the cursor;
• and
• generating a constraint graph, the constraint graph having at least one constraint on the managing another graph and wherein the generating a cursor further comprises the cursor being associated with the constraint graph;
• wherein the generating a graph further comprises:
• creating a second cursor, in which the variable is bound to one of a plurality of nodes and links.

A computerized method for managing a graph comprising:

• generating a cursor of the graph;
• and
• navigating through the graph using the cursor, wherein the navigating through the graph using the cursor further comprises:
• bind a variable to the first instance of the plurality of nodes and links;
• bind a variable to the last instance of the plurality of nodes and links;
• bind a variable to the next instance of the plurality of nodes and links;
• and
• bind a variable to the previous instance of the plurality of nodes and links.

A computerized method for managing a graph comprising:

• generating a cursor of the graph;
• and
• navigating through the graph using the cursor;
• retrieving information from the graph;
• setting the value of a node that a specified variable is bound;
• beginning an atomic transaction;
• ending the atomic transaction;
• committing the current atomic transaction;
• aborting the current atomic transaction;
• cloning the cursor;
• entering a snapshot mode;
• refreshing the snapshot mode;
• locking a node;
• locking a pattern;
• specifying a level of authorization and access permission in levels of granularity;
• mapping a link and a node to a data source;
• specifying a variable to receive notification of change;
• and
• specifying a pattern to receive notification of change.

A computerized system comprising:

• a directed labeled graph having node and links;
• an annotated schema runtime engine operably coupled to the directed labeled graph;
• and
• an apparatus having at least one variable bound to a node or link in the directed labeled graph operably coupled to the annotated schema runtime engine wherein the apparatus has at least one variable bound to a node or link in the directed labeled graph comprises:
• an annotated schema runtime interface;
• and an annotated schema runtime cursor interface.