Class ASTScalar

All Implemented Interfaces:
Serializable, Node, XMLSerializable
Direct Known Subclasses:
ASTEnum, ASTNamedParameter

public class ASTScalar extends SimpleNode
A scalar value wrapper expression.
Since:
1.1
See Also:
  • Field Details

    • value

      protected Object value
  • Constructor Details

    • ASTScalar

      public ASTScalar()
    • ASTScalar

      public ASTScalar(Object value)
  • Method Details

    • 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
    • shallowCopy

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

      public void appendAsString(Appendable out) throws IOException
      Description copied from class: Expression
      Appends own content as a String to the provided Appendable.
      Overrides:
      appendAsString in class SimpleNode
      Throws:
      IOException
      Since:
      4.0
    • 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
      Since:
      4.0
    • setValue

      public void setValue(Object value)
    • getValue

      public Object getValue()
    • getExpressionOperator

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

      public boolean equals(Object o)
      Overrides:
      equals in class Expression
    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Expression