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Java Source Code / Java Documentation » Portal » mypersonalizer » es.udc.mypersonalizer.kernel.model.query.ast.expr

Source Cross Reference Class Diagram Java Document (Java Doc)

es.udc.mypersonalizer.kernel.model.query.ast.expr .ExpressionVisitor

All known Subclasses:   es.udc.mypersonalizer.kernel.model.query.executor.sql .SelectIdsMetaPropertyVisitor,
ExpressionVisitor
public interface ExpressionVisitor (Code)
Interface for visiting concrete Expressions (Visitor design pattern).
It defines a visit() method for each concrete Expression, which performs some operation on it and then returns some result.
Operations that do not return a value must return null.
ExpressionVisitors can throw UnsupportedOperationException for visit methods that are not supposed to be called in correctly-written code (i.e. visitors are allowed to be aplicable only to a subset of expressions).
since:
   1.0
author:
   Abel Muinho

Method Summary
public Object visit(LogicalAndExpression e)
     Visit method for a LogicalAndExpression.
Parameters:
  e - the expression to visit.
public Object visit(LogicalOrExpression e)
     Visit method for a LogicalOrExpression.
Parameters:
  e - the expression to visit.
public Object visit(EqualsExpression e)
     Visit method for a EqualsExpression.
Parameters:
  e - the expression to visit.
public Object visit(NotEqualsExpression e)
     Visit method for a EqualsExpression.
Parameters:
  e - the expression to visit.
public Object visit(LiteralBooleanExpression e)
     Visit method for a LiteralBooleanExpression.
Parameters:
  e - the expression to visit.
public Object visit(LiteralNumericExpression e)
     Visit method for a LiteralNumericExpression.
Parameters:
  e - the expression to visit.
public Object visit(LiteralStringExpression e)
     Visit method for a LiteralStringExpression.
Parameters:
  e - the expression to visit.
public Object visit(PropertyListExpression e)
     Visit method for a PropertyListExpression.
Parameters:
  e - the expression to visit.
public Object visit(StepExpression e)
     Visit method for a MetaPropertyReferenceExpression.
Parameters:
  e - the expression to visit.
public Object visit(ContainsFunctionExpression expression)
     Visit method for a ContainsFunctionExpression.
Parameters:
  expression - the expression to visit.
public Object visit(StartsWithFunctionExpression expression)
     Visit method for a StartsWithFunctionExpression.
Parameters:
  expression - the expression to visit.
public Object visit(GreaterThanExpression expression)
     Visit method for a GreaterThanExpression.
Parameters:
  expression - the expression to visit.
public Object visit(LesserThanExpression expression)
     Visit method for a LesserThanExpression.
Parameters:
  expression - the expression to visit.
public Object visit(GreaterOrEqualExpression expression)
     Visit method for a GreaterOrEqualExpression.
Parameters:
  expression - the expression to visit.
public Object visit(LesserOrEqualExpression expression)
     Visit method for a LesserOrEqualExpression.
Parameters:
  expression - the expression to visit.

Method Detail
visit
public Object visit(LogicalAndExpression e) throws VisitorException(Code)
Visit method for a LogicalAndExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LogicalOrExpression e) throws VisitorException(Code)
Visit method for a LogicalOrExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(EqualsExpression e) throws VisitorException(Code)
Visit method for a EqualsExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(NotEqualsExpression e) throws VisitorException(Code)
Visit method for a EqualsExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LiteralBooleanExpression e) throws VisitorException(Code)
Visit method for a LiteralBooleanExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LiteralNumericExpression e) throws VisitorException(Code)
Visit method for a LiteralNumericExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LiteralStringExpression e) throws VisitorException(Code)
Visit method for a LiteralStringExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(PropertyListExpression e) throws VisitorException(Code)
Visit method for a PropertyListExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(StepExpression e) throws VisitorException(Code)
Visit method for a MetaPropertyReferenceExpression.
Parameters:
  e - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(ContainsFunctionExpression expression) throws VisitorException(Code)
Visit method for a ContainsFunctionExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(StartsWithFunctionExpression expression) throws VisitorException(Code)
Visit method for a StartsWithFunctionExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(GreaterThanExpression expression) throws VisitorException(Code)
Visit method for a GreaterThanExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LesserThanExpression expression) throws VisitorException(Code)
Visit method for a LesserThanExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(GreaterOrEqualExpression expression) throws VisitorException(Code)
Visit method for a GreaterOrEqualExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

visit
public Object visit(LesserOrEqualExpression expression) throws VisitorException(Code)
Visit method for a LesserOrEqualExpression.
Parameters:
  expression - the expression to visit. the result of the visit.
throws:
  VisitorException - if errors are found during the visit.

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