Class ASTWhen

All Implemented Interfaces:
Serializable, Node, XMLSerializable

public class ASTWhen extends AggregateConditionNode
"WHEN" part of the case-when expression.
Since:
5.0
See Also:
  • Constructor Details

    • ASTWhen

      public ASTWhen(Expression condition)
    • ASTWhen

      public ASTWhen(int id)
  • Method Details

    • shallowCopy

      public Expression shallowCopy()
      Description copied from class: Expression
      Creates a copy of this expression node, without copying children.
      Specified by:
      shallowCopy in class Expression
    • getExpressionOperator

      protected String getExpressionOperator(int index)
      Specified by:
      getExpressionOperator in class SimpleNode
    • evaluateNode

      protected Object evaluateNode(Object o) throws Exception
      Description copied from class: SimpleNode
      Evaluates itself with object, pushing result on the stack.
      Specified by:
      evaluateNode in class SimpleNode
      Throws:
      Exception
    • getType

      public int getType()
      Description copied from class: Expression
      Returns a type of expression. Most common types are defined as public static fields of this interface.
      Overrides:
      getType in class Expression
    • jjtSetParent

      public void jjtSetParent(Node n)
      Description copied from interface: Node
      This pair of methods are used to inform the node of its parent.
      Specified by:
      jjtSetParent in interface Node
      Overrides:
      jjtSetParent in class SimpleNode
    • appendAsEJBQL

      public void appendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId) throws IOException
      Description copied from class: Expression
      Stores a String representation of Expression as EJBQL using a provided PrintWriter. DB path expressions produce non-standard EJBQL path expressions. If the parameterAccumulator is supplied then as the EJBQL is output, it may load parameters into this list. In this case, the EJBQL output will contain reference to positional parameters. If no parameterAccumulator is supplied and a scalar type is encountered for which there is no EJBQL literal representation (such as dates) then this method will throw a runtime exception to indicate that it was not possible to generate a string-only representation of the Expression in EJBQL.
      Overrides:
      appendAsEJBQL in class SimpleNode
      Throws:
      IOException