Package org.eclipse.rdf4j.query.algebra

Class ProjectionElem

java.lang.Object
org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
org.eclipse.rdf4j.query.algebra.ProjectionElem
All Implemented Interfaces:
Serializable, Cloneable, GraphPatternGroupable, QueryModelNode, VariableScopeChange
public class ProjectionElem extends AbstractQueryModelNode
See Also:

  • Constructor Details

    • ProjectionElem

      public ProjectionElem()

    • ProjectionElem

      public ProjectionElem(String name)

    • ProjectionElem

      public ProjectionElem(String sourceName, String targetName)

  • Method Details

    • getSourceName

      public String getSourceName()

    • setSourceName

      public void setSourceName(String sourceName)

    • getTargetName

      public String getTargetName()

    • setTargetName

      public void setTargetName(String targetName)

    • visit

      public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X
      Description copied from interface: QueryModelNode
      Visits this node. The node reports itself to the visitor with the proper runtime type.
      Throws:
      X extends Exception

    • getSignature

      public String getSignature()
      Description copied from class: AbstractQueryModelNode
      Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
      Specified by:
      getSignature in interface QueryModelNode
      Overrides:
      getSignature in class AbstractQueryModelNode
      Returns:
      The node's signature, e.g. SLICE (offset=10, limit=10).

    • equals

      public boolean equals(Object other)
      Description copied from interface: QueryModelNode
      Returns true if this query model node and its children are recursively equal to o and its children.
      Specified by:
      equals in interface QueryModelNode
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • clone

      public ProjectionElem clone()
      Description copied from interface: QueryModelNode
      Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.
      Specified by:
      clone in interface QueryModelNode
      Overrides:
      clone in class AbstractQueryModelNode
      Returns:
      A deep clone of this query model node.

    • hasAggregateOperatorInExpression

      public boolean hasAggregateOperatorInExpression()
      Returns:
      Returns the aggregateOperatorInExpression.

    • setAggregateOperatorInExpression

      public void setAggregateOperatorInExpression(boolean aggregateOperatorInExpression)
      Parameters:
      aggregateOperatorInExpression - The aggregateOperatorInExpression to set.

    • getSourceExpression

      public ExtensionElem getSourceExpression()
      Returns:
      Returns the sourceExpression.

    • setSourceExpression

      public void setSourceExpression(ExtensionElem sourceExpression)
      Parameters:
      sourceExpression - The sourceExpression to set.