Uses of Package
it.unibz.inf.ontop.iq.node

Packages that use it.unibz.inf.ontop.iq.node

Package	Description
it.unibz.inf.ontop.injection
it.unibz.inf.ontop.iq
it.unibz.inf.ontop.iq.impl
it.unibz.inf.ontop.iq.impl.tree
it.unibz.inf.ontop.iq.node
it.unibz.inf.ontop.iq.node.impl
it.unibz.inf.ontop.iq.node.normalization
it.unibz.inf.ontop.iq.node.normalization.impl
it.unibz.inf.ontop.iq.tools
it.unibz.inf.ontop.iq.tools.impl
it.unibz.inf.ontop.iq.transform
it.unibz.inf.ontop.iq.transform.impl
it.unibz.inf.ontop.iq.transform.node
it.unibz.inf.ontop.iq.transform.node.impl
it.unibz.inf.ontop.iq.type.impl
it.unibz.inf.ontop.iq.validation.impl
it.unibz.inf.ontop.iq.visit
it.unibz.inf.ontop.model.term
it.unibz.inf.ontop.model.term.functionsymbol
it.unibz.inf.ontop.model.term.functionsymbol.db.impl
it.unibz.inf.ontop.model.term.functionsymbol.impl
it.unibz.inf.ontop.model.term.impl
it.unibz.inf.ontop.substitution
it.unibz.inf.ontop.substitution.impl
it.unibz.inf.ontop.utils

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.injection

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
NativeNode Represents a serialized query that can be executed by the DB engine See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
OrderByNode.OrderComparator
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq

Class and Description
BinaryOrderedOperatorNode.ArgumentPosition
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
ExplicitVariableProjectionNode Node that explicitly declares the variables returned by its sub-tree.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
QueryNode Immutable.
TrueNode See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryOrderedOperatorNode.ArgumentPosition
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
QueryNode Immutable.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.impl.tree

Class and Description
BinaryOrderedOperatorNode.ArgumentPosition
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
QueryNode Immutable.
TrueNode See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.node

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
BinaryOrderedOperatorNode The ordering of the operands is meaningful procedurally, and therefore should be preserved.
BinaryOrderedOperatorNode.ArgumentPosition
CommutativeJoinNode Commutative: the children order does not matter
CommutativeJoinOrFilterNode Union of CommutativeJoinNode and FilterNode
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DataNode TODO: describe
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExplicitVariableProjectionNode Node that explicitly declares the variables returned by its sub-tree.
ExtendedProjectionNode Common abstraction for ConstructionNode and AggregationNode
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinLikeNode
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
JoinLikeNode Any kind of JOIN (inner, left join)
JoinOrFilterNode TODO: explain
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
NodeTransformationProposedState Transformation to the local node.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
OrderByNode.OrderComparator
QueryModifierNode
QueryNode Immutable.
QueryNodeVisitor Visits QueryNodes without having effect on them and the intermediate query.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.node.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
BinaryOrderedOperatorNode The ordering of the operands is meaningful procedurally, and therefore should be preserved.
CommutativeJoinNode Commutative: the children order does not matter
CommutativeJoinOrFilterNode Union of CommutativeJoinNode and FilterNode
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DataNode TODO: describe
DistinctNode See IntermediateQueryFactory for creating a new instance.
DummyVariableNullability
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExplicitVariableProjectionNode Node that explicitly declares the variables returned by its sub-tree.
ExtendedProjectionNode Common abstraction for ConstructionNode and AggregationNode
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinLikeNode
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
JoinLikeNode Any kind of JOIN (inner, left join)
JoinOrFilterNode TODO: explain
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
NativeNode Represents a serialized query that can be executed by the DB engine See IntermediateQueryFactory for creating a new instance.
NodeTransformationProposal TODO: explain
NodeTransformationProposedState Transformation to the local node.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
OrderByNode.OrderComparator
QueryModifierNode
QueryNode Immutable.
QueryNodeVisitor Visits QueryNodes without having effect on them and the intermediate query.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.node.normalization

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.node.normalization.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.tools

Class and Description
QueryNode Immutable.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.tools.impl

Class and Description
QueryNode Immutable.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.transform

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.transform.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.transform.node

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.transform.node.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.type.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtendedProjectionNode Common abstraction for ConstructionNode and AggregationNode
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
NativeNode Represents a serialized query that can be executed by the DB engine See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.validation.impl

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
QueryNodeVisitor Visits QueryNodes without having effect on them and the intermediate query.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.iq.visit

Class and Description
AggregationNode Combines GROUP BY and a projection See IntermediateQueryFactory for creating a new instance.
BinaryNonCommutativeOperatorNode Operator QueryNode which are binary and whose operands ordering is semantically meaningful.
ConstructionNode Head node an IntermediateQuery TODO: further explain See IntermediateQueryFactory for creating a new instance.
DistinctNode See IntermediateQueryFactory for creating a new instance.
EmptyNode Temporary QueryNode that says that replace a non-satisfied sub-tree.
ExtensionalDataNode TODO: explain
FilterNode TODO: explain See IntermediateQueryFactory for creating a new instance.
InnerJoinNode See IntermediateQueryFactory for creating a new instance.
IntensionalDataNode TODO: explain TODO: find a better name See IntermediateQueryFactory for creating a new instance.
LeftJoinNode See IntermediateQueryFactory for creating a new instance.
NaryOperatorNode Has at least two children
NativeNode Represents a serialized query that can be executed by the DB engine See IntermediateQueryFactory for creating a new instance.
OrderByNode Follows a NULLS FIRST semantics (if ascending, NULLS LAST otherwise), similarly to SPARQL See https://www.w3.org/TR/sparql11-query/#modOrderBy See IntermediateQueryFactory for creating a new instance.
SliceNode See IntermediateQueryFactory for creating a new instance.
TrueNode See IntermediateQueryFactory for creating a new instance.
UnaryOperatorNode Has ONE child
UnionNode All its children are expected to project its projected variables See IntermediateQueryFactory for creating a new instance.

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.model.term

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.model.term.functionsymbol

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.model.term.functionsymbol.db.impl

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.model.term.functionsymbol.impl

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.model.term.impl

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.substitution

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.substitution.impl

Class and Description
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances

Classes in it.unibz.inf.ontop.iq.node used by it.unibz.inf.ontop.utils

Class and Description
DummyVariableNullability
VariableNullability TODO: find a better name IMMUTABLE See CoreUtilsFactory for creating new instances