se.liu.ida.hefquin.engine.queryplan.logical.impl.LogicalOpFixedSolMap

All Implemented Interfaces:: QueryPlanOperator, LogicalOperator, NullaryLogicalOp

public class LogicalOpFixedSolMap extends Object implements NullaryLogicalOp

A logical operator that returns a given solution mapping.

Field Details
- sm
  
  protected final SolutionMapping sm
- expectedVars
  
  protected final ExpectedVariables expectedVars
Constructor Details
- LogicalOpFixedSolMap
  
  public LogicalOpFixedSolMap(SolutionMapping sm)
Method Details
- getSolutionMapping
  
  public SolutionMapping getSolutionMapping()
- visit
  
  public void visit(LogicalPlanVisitor visitor)
  
  Specified by:
  
  visit in interface LogicalOperator
- getExpectedVariables
  
  public ExpectedVariables getExpectedVariables(ExpectedVariables... inputVars)
  
  Description copied from interface: QueryPlanOperator
  
  Returns the variables that can be expected in the solution mappings produced by this operator in the case that the input(s) to this operator contain solutions mappings with the given set(s) of variables. The number of ExpectedVariables objects passed to this method must be in line with the degree of this operator (e.g., for a unary operator, exactly one such object must be passed).
  
  Specified by:
  
  getExpectedVariables in interface QueryPlanOperator
- equals
  
  public boolean equals(Object o)
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public int hashCode()
  
  Overrides:
  
  hashCode in class Object
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object

Class LogicalOpFixedSolMap

Field Summary