In OrientDB 1.7, it was possible to write code like this:
OrientGraph g = factory.getTx()
def vertex = g.getVertices( ... )
g.shutdown()
def record = vertex.getRecord()
def json = record.toJSON( fetchPlan )
This would get a JSON representation of the vertex (and other data,
depending on the fetch plan).
In Orient 2.0, that code compiles, and it runs, but it fails silently, with
a wide variety of failure modes:
- If your database has a custom DATETIMEFORMAT, your datetime fields
will be formatted with the default datetime format, instead of your custom
format.
- Any fields that depend upon your fetch plan will not be retrieved
(with no error message).
- Sometimes you'll get an ODatabaseException (see below).
The obvious solution to the problem is to rewrite your code like this:
OrientGraph g = factory.getTx()
def vertex = g.getVertices( ... )
def record = vertex.getRecord()
def json = record.toJSON( fetchPlan )
g.shutdown()
The hard part is discovering all of the mis-timed usages and correcting
them. One way to do that is to modify methods that take a bare ORecord and
add this code:
def db = record.getDatabase()
log.debug( "Database status: ${db.getStatus()}" )
This spits out a log message if your graph is active, and throws a
completely misleading ODatabaseException if the graph has been closed:
com.orientechnologies.orient.core.exception.ODatabaseException: Database
instance is not set in current thread. Assure to set it with:
ODatabaseRecordThreadLocal.INSTANCE.set(db);
at
com.orientechnologies.orient.core.db.ODatabaseRecordThreadLocal.get(ODatabaseRecordThreadLocal.java:54)
at
com.orientechnologies.orient.core.record.ORecordAbstract.getDatabase(ORecordAbstract.java:240)
at
com.orientechnologies.orient.core.record.ORecordAbstract.getDatabase(ORecordAbstract.java:48)
at com.mycompany.myprogram.mypackage.MyClass.myMethod().
You can then use that stack trace to track back to your problem methods.
- Craig -
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