Package org.garret.perst

Interface Summary

BitIndex	Interface of bit index.
Blob	Interface to store/fetch large binary objects
ChangeListener	Listener for change is database files.
FieldIndex	Interface of indexed field.
GenericIndex	Interface of object index.
IFile	Interface of file.
Index	Interface of object index.
IPersistent	Interface of all persistent capable objects
IPersistentSet	Interface of persistent set.
IResource	Interface of object supporting locking
ITable	Interface of selectable collection.
IValue	Interface of objects stored as value.
Link	Interface for one-to-many relation.
PatriciaTrie	PATRICIA trie (Practical Algorithm To Retrieve Information Coded In Alphanumeric).
PersistentIterator	Interface implemented by all Perst iterators allowing to get OID of the current object
Query	Class representing JSQL query.
ReplicationMasterStorage	Storage performing replication of changed pages to specified slave nodes.
ReplicationSlaveStorage	Storage reciving modified pages from replication master and been able to run read-only transactions
Resolver	Abstraction of class resolver.
SortedCollection	Interface of sorted collection.
SpatialIndex	Interface of object spatial index.
SpatialIndexR2	Interface of object spatial index.
Storage	Object storage
TimeSeries	Time series interface.
TimeSeriesTick	Interface for timeseries element.

Class Summary

Assert	Class for checking program invariants.
Database	This class emulates relational database on top of Perst storage It maintain class extends, associated indices, prepare queries.
Key	Class for specifying key value (needed to access obejct by key usig index)
L2List	Double linked list.
L2ListElem	Double linked list element.
MemoryUsage	Information about memory usage for the correspondent class.
NullFile	This implementation of IFile interface can be used to make Perst an main-memory database.
PatriciaTrieKey	Convert different type of keys to 64-bit long value used in PATRICIA trie (Practical Algorithm To Retrieve Information Coded In Alphanumeric)
Persistent	Base class for all persistent capable objects
PersistentComparator	Base class for persistent comparator used in SortedCollection class
PersistentResource	Base class for persistent capable objects supporting locking
PersistentString	Class encapsulating native Java string. java.lang.String is not persistent object so it can not be stored in Perst as independent persistent object.
Projection	Class use to project selected objects using relation field.
Rectangle	Rectangle with integer cooordinates.
RectangleR2	R2 rectangle class.
Relation	Class representing relation between owner and members
StorageFactory	Storage factory
StorageListener	Listener of database events.
TimeSeriesBlock	Abstract base class for time series block.
Version	Base class for version of versioned object.
VersionHistory	Collection of version of versioned object.

Exception Summary

CompileError	Exception thrown by compiler
JSQLArithmeticException	Exception thown in case of incorect operands for integer operations
JSQLNoSuchFieldException	Exception thown when field is not found during runtime lookup
JSQLNullPointerException	Exception thown when null reference field is dereferenced
JSQLRuntimeException	Exception thown by JSQL at runtime which should be ignored and boolean expression caused this exption should be treated as false
StorageError	Exception throw by storage implementation
XMLImportException	Exception thrown during import of data from XML file in database

Error Summary

AssertionFailed

Exception raised by Assert class when assertion was failed.