aspoev.manager.schema
Class SchemaVersioningManager

java.lang.Object
  aspoev.manager.schema.SchemaManager
      aspoev.manager.schema.ClassVersioningManager
          aspoev.manager.schema.SchemaVersioningManager

public class SchemaVersioningManager

extends ClassVersioningManager

A schema manager that handles schema evolution by creating different versions of the schema, where each schema version has a particular version of each class.

Field Summary

protected VariableReferenceElement	schemaExtentHandle
protected SchemaVersion	schemaVersion
protected VariableReferenceElement	schemaVersionHandle
protected java.util.HashMap	schemaVersions

Fields inherited from class aspoev.manager.schema.ClassVersioningManager

typeMap

Fields inherited from class aspoev.manager.schema.SchemaManager

defaultSchema, reassignedTypes, SCHEMA_EXTENT, substitutibleTypes

Constructor Summary

SchemaVersioningManager()

SchemaVersioningManager(SchemaVersion version)

Method Summary

void	addType(TypeReferenceElement newType) A leaf node.
boolean	compareTypes(TypeReferenceElement typeOne, TypeReferenceElement typeTwo) This method encapsulates the algorithm for type equality.
void	deprecateType(TypeReferenceElement removed)
TypeReferenceElement	getActiveVersion(TypeReferenceElement type) This method returns the version of the argument type that is active or preferred in the current context ('context' to be defined and evaluated by the schema manager).
TypeReferenceElement	getCurrentVersion(TypeReferenceElement type)
SchemaVersion	getSchemaVersion()
boolean	isWorkingVersion()
void	makeFinal()
void	setCurrentVersion(SchemaVersion schemaVersion)
void	setSchemaVersion(SchemaVersion version)
TypeReferenceElement	setTypeVersion(TypeReferenceElement newType)
void	startWorkingVersion()
java.lang.String	toString()

Methods inherited from class aspoev.manager.schema.ClassVersioningManager

bindType, getActiveType

Methods inherited from class aspoev.manager.schema.SchemaManager

alteredFieldReferenced, alteredMethodReferenced, assignableFrom, declareSubstitutable, fieldExposed, fieldOverridden, getEquivalentTypes, getReassignedType, getSchemaExtent, getSubstitutableTypes, getTypeExtent, isSubstitutibleFor, methodExposed, methodOverridden, print, reclassifyType, removedFieldReferenced, removedMethodReferenced, removeType, renamedMemberReferenced, renamedTypeReferenced, setSchemaExtent, transitionFrom, typeMismatch, unknownField, unknownMethod

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

schemaVersions

protected java.util.HashMap schemaVersions

schemaVersionHandle

protected VariableReferenceElement schemaVersionHandle

schemaExtentHandle

protected VariableReferenceElement schemaExtentHandle

schemaVersion

protected SchemaVersion schemaVersion

Constructor Detail

SchemaVersioningManager

public SchemaVersioningManager(SchemaVersion version)

SchemaVersioningManager

public SchemaVersioningManager()

Method Detail

addType

public void addType(TypeReferenceElement newType)

Description copied from class: ClassVersioningManager

A leaf node.

Overrides:

addType in class ClassVersioningManager

compareTypes

public boolean compareTypes(TypeReferenceElement typeOne,
                            TypeReferenceElement typeTwo)

Description copied from class: SchemaManager

This method encapsulates the algorithm for type equality. Returns 'true' if two argument types are equal, false otherwise. The default implementation compares the namespaces, names, and versions of the types and returns true if all three are equal.

Overrides:

compareTypes in class ClassVersioningManager

deprecateType

public void deprecateType(TypeReferenceElement removed)

Overrides:

deprecateType in class ClassVersioningManager

setSchemaVersion

public void setSchemaVersion(SchemaVersion version)

setTypeVersion

public TypeReferenceElement setTypeVersion(TypeReferenceElement newType)

getActiveVersion

public TypeReferenceElement getActiveVersion(TypeReferenceElement type)

Description copied from class: SchemaManager

This method returns the version of the argument type that is active or preferred in the current context ('context' to be defined and evaluated by the schema manager). Default implementation returns the most current version of the argument type which is present in the schema. Implementing strategies should override this method to reflect the appropriate type.

Overrides:

getActiveVersion in class SchemaManager

getSchemaVersion

public SchemaVersion getSchemaVersion()

getCurrentVersion

public TypeReferenceElement getCurrentVersion(TypeReferenceElement type)

isWorkingVersion

public boolean isWorkingVersion()

makeFinal

public void makeFinal()

startWorkingVersion

public void startWorkingVersion()

setCurrentVersion

public void setCurrentVersion(SchemaVersion schemaVersion)

toString

public java.lang.String toString()