org.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor<X>

All Implemented Interfaces:: QueryModelVisitor<X>

Direct Known Subclasses:: BaseTupleExprRenderer, BindingAssigner.VarVisitor, CompareOptimizer.CompareVisitor, ConjunctiveConstraintSplitter.ConstraintVisitor, ConstantOptimizer.VarNameCollector, ContextCollector, DisjunctiveConstraintOptimizer.OrSameTermOptimizer, EvaluationStatistics.CardinalityCalculator, ExclusiveTupleExprOptimizer, FilterOptimizer, FilterOptimizer.DeMergeFilterFinder, FilterOptimizer.FilterBindingFinder, FilterOptimizer.FilterExprInsertVisitor, FilterOptimizer.FilterFinder, FilterOptimizer.FilterRelocator, FilterOptimizer.MergeFilterFinder, FilterOptimizer.VarFinder, GenericInfoOptimizer, IterativeEvaluationOptimizer.IEOVisitor, LimitOptimizer, OrderLimitOptimizer.OrderOptimizer, QueryJoinOptimizer.JoinVisitor, QueryModelNodeReplacer, QueryModelNormalizer, QueryModelPruner.TreeSanitizer, QueryModelTreePrinter, QueryModelTreeToGenericPlanNode, QueryModelVisitorBase, RegexAsStringFunctionOptimizer.RegexAsStringFunctionVisitor, SameTermFilterOptimizer.BindingSetAssignmentCollector, SameTermFilterOptimizer.SameTermFilterVisitor, SameTermFilterOptimizer.VarBinder, SameTermFilterOptimizer.VarRenamer, ServiceOptimizer, StatementGroupAndJoinOptimizer, StatementPatternCollector, TripleRefCollector, TupleExprBuilder.SameTermCollector, TupleExprBuilder.VarCollector, UnionOptimizer, VarNameCollector

public abstract class AbstractQueryModelVisitor<X extends Exception> extends Object implements QueryModelVisitor<X>

Base class for QueryModelVisitors. This class implements all meet(... node) methods from the visitor interface, forwarding the call to a method for the node's supertype. This is done recursively until meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) is reached. This allows subclasses to easily define default behaviour for visited nodes of a certain type. The default implementation of meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) is to visit the node's children.

Constructor Summary

Constructors

Constructor

Description

AbstractQueryModelVisitor()
Method Summary

Modifier and Type

Method

Description

void

meet(Add node)

void

meet(And node)

void

meet(ArbitraryLengthPath node)

void

meet(Avg node)

void

meet(BindingSetAssignment node)

void

meet(BNodeGenerator node)

void

meet(Bound node)

void

meet(Clear node)

void

meet(Coalesce node)

void

meet(Compare node)

void

meet(CompareAll node)

void

meet(CompareAny node)

void

meet(Copy node)

void

meet(Count node)

void

meet(Create node)

void

meet(Datatype node)

void

meet(DeleteData node)

void

meet(DescribeOperator node)

void

meet(Difference node)

void

meet(Distinct node)

void

meet(EmptySet node)

void

meet(Exists node)

void

meet(Extension node)

void

meet(ExtensionElem node)

void

meet(Filter node)

void

meet(FunctionCall node)

void

meet(Group node)

void

meet(GroupConcat node)

void

meet(GroupElem node)

void

meet(If node)

void

meet(In node)

void

meet(InsertData node)

void

meet(Intersection node)

void

meet(IRIFunction node)

void

meet(IsBNode node)

void

meet(IsLiteral node)

void

meet(IsNumeric node)

void

meet(IsResource node)

void

meet(IsURI node)

void

meet(Join node)

void

meet(Label node)

void

meet(Lang node)

void

meet(LangMatches node)

void

meet(LeftJoin node)

void

meet(Like node)

Deprecated, for removal: This API element is subject to removal in a future version.

void

meet(ListMemberOperator node)

void

meet(Load node)

void

meet(LocalName node)

void

meet(MathExpr node)

void

meet(Max node)

void

meet(Min node)

void

meet(Modify node)

void

meet(Move node)

void

meet(MultiProjection node)

void

meet(Namespace node)

void

meet(Not node)

void

meet(Or node)

void

meet(Order node)

void

meet(OrderElem node)

void

meet(Projection node)

void

meet(ProjectionElem node)

void

meet(ProjectionElemList node)

void

meet(QueryRoot node)

void

meet(Reduced node)

void

meet(Regex node)

void

meet(SameTerm node)

void

meet(Sample node)

void

meet(Service node)

void

meet(SingletonSet node)

void

meet(Slice node)

void

meet(StatementPattern node)

void

meet(Str node)

void

meet(Sum node)

void

meet(TripleRef node)

void

meet(Union node)

void

meet(ValueConstant node)

void

meet(ValueExprTripleRef node)

void

meet(Var node)

void

meet(ZeroLengthPath node)

protected void

meetBinaryTupleOperator(BinaryTupleOperator node)

Method called by all meet methods with a BinaryTupleOperator node as argument.

protected void

meetBinaryValueOperator(BinaryValueOperator node)

Method called by all meet methods with a BinaryValueOperator node as argument.

protected void

meetCompareSubQueryValueOperator(CompareSubQueryValueOperator node)

Method called by all meet methods with a CompareSubQueryValueOperator node as argument.

protected void

meetNAryValueOperator(NAryValueOperator node)

Method called by all meet methods with a NAryValueOperator node as argument.

protected void

meetNode(QueryModelNode node)

Method called by all of the other meet methods that are not overridden in subclasses.

void

meetOther(QueryModelNode node)

protected void

meetSubQueryValueOperator(SubQueryValueOperator node)

Method called by all meet methods with a SubQueryValueOperator node as argument.

protected void

meetUnaryTupleOperator(UnaryTupleOperator node)

Method called by all meet methods with a UnaryTupleOperator node as argument.

protected void

meetUnaryValueOperator(UnaryValueOperator node)

Method called by all meet methods with a UnaryValueOperator node as argument.

protected void

meetUpdateExpr(UpdateExpr node)

Method called by all meet methods with a UpdateExpr node as argument.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- AbstractQueryModelVisitor
  
  public AbstractQueryModelVisitor()
Method Details
- meet
  
  public void meet(Add node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(And node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ArbitraryLengthPath node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Avg node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(BindingSetAssignment node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(BNodeGenerator node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Bound node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Clear node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Coalesce node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Compare node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(CompareAll node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(CompareAny node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(DescribeOperator node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Copy node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Count node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Create node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Datatype node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(DeleteData node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Difference node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Distinct node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(EmptySet node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Exists node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Extension node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ExtensionElem node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Filter node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(FunctionCall node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Group node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(GroupConcat node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(GroupElem node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(If node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(In node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(InsertData node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Intersection node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IRIFunction node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IsBNode node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IsLiteral node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IsNumeric node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IsResource node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(IsURI node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Join node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Label node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Lang node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(LangMatches node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(LeftJoin node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  @Deprecated(forRemoval=true) public void meet(Like node) throws X
  
  Deprecated, for removal: This API element is subject to removal in a future version.
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Load node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(LocalName node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(MathExpr node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Max node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Min node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Modify node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Move node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(MultiProjection node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Namespace node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Not node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Or node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Order node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(OrderElem node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Projection node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ProjectionElem node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ProjectionElemList node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(QueryRoot node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Reduced node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Regex node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(SameTerm node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Sample node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Service node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(SingletonSet node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Slice node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(StatementPattern node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Str node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Sum node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Union node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ValueConstant node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ListMemberOperator node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(Var node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ZeroLengthPath node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(TripleRef node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meet
  
  public void meet(ValueExprTripleRef node) throws X
  
  Specified by:
  
  meet in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meetOther
  
  public void meetOther(QueryModelNode node) throws X
  
  Specified by:
  
  meetOther in interface QueryModelVisitor<X extends Exception>
  
  Throws:
  
  X extends Exception
- meetBinaryTupleOperator
  
  protected void meetBinaryTupleOperator(BinaryTupleOperator node) throws X
  
  Method called by all meet methods with a BinaryTupleOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetBinaryValueOperator
  
  protected void meetBinaryValueOperator(BinaryValueOperator node) throws X
  
  Method called by all meet methods with a BinaryValueOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetCompareSubQueryValueOperator
  
  protected void meetCompareSubQueryValueOperator(CompareSubQueryValueOperator node) throws X
  
  Method called by all meet methods with a CompareSubQueryValueOperator node as argument. Forwards the call to meetSubQueryValueOperator(org.eclipse.rdf4j.query.algebra.SubQueryValueOperator) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetNAryValueOperator
  
  protected void meetNAryValueOperator(NAryValueOperator node) throws X
  
  Method called by all meet methods with a NAryValueOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetNode
  
  protected void meetNode(QueryModelNode node) throws X
  
  Method called by all of the other meet methods that are not overridden in subclasses. This method can be overridden in subclasses to define default behaviour when visiting nodes. The default behaviour of this method is to visit the node's children.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetSubQueryValueOperator
  
  protected void meetSubQueryValueOperator(SubQueryValueOperator node) throws X
  
  Method called by all meet methods with a SubQueryValueOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetUnaryTupleOperator
  
  protected void meetUnaryTupleOperator(UnaryTupleOperator node) throws X
  
  Method called by all meet methods with a UnaryTupleOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetUnaryValueOperator
  
  protected void meetUnaryValueOperator(UnaryValueOperator node) throws X
  
  Method called by all meet methods with a UnaryValueOperator node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception
- meetUpdateExpr
  
  protected void meetUpdateExpr(UpdateExpr node) throws X
  
  Method called by all meet methods with a UpdateExpr node as argument. Forwards the call to meetNode(org.eclipse.rdf4j.query.algebra.QueryModelNode) by default.
  
  Parameters:
  
  node - The node that is being visited.
  
  Throws:
  
  X extends Exception

Class AbstractQueryModelVisitor<X extends Exception>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

AbstractQueryModelVisitor

Method Details

meet

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