Class SimpleNode

All Implemented Interfaces:
Serializable, EJBQLExpression, Node
Direct Known Subclasses:
AggregateConditionNode, EJBQLAbs, EJBQLAbstractSchemaName, EJBQLAdd, EJBQLAggregate, EJBQLAggregateColumn, EJBQLAll, EJBQLAny, EJBQLAscending, EJBQLBetween, EJBQLBooleanLiteral, EJBQLClassName, EJBQLConcat, EJBQLConstructor, EJBQLConstructorParameter, EJBQLConstructorParameters, EJBQLCurrentDate, EJBQLCurrentTime, EJBQLCurrentTimestamp, EJBQLDecimalLiteral, EJBQLDelete, EJBQLDescending, EJBQLDistinct, EJBQLDivide, EJBQLEquals, EJBQLEscapeCharacter, EJBQLExists, EJBQLFrom, EJBQLFromItem, EJBQLGreaterOrEqual, EJBQLGreaterThan, EJBQLGroupBy, EJBQLHaving, EJBQLIdentificationVariable, EJBQLIdentifier, EJBQLIn, EJBQLIntegerLiteral, EJBQLIsEmpty, EJBQLIsNull, EJBQLJoin, EJBQLLength, EJBQLLessOrEqual, EJBQLLessThan, EJBQLLike, EJBQLLocate, EJBQLLower, EJBQLMemberOf, EJBQLMod, EJBQLMultiply, EJBQLNamedInputParameter, EJBQLNegative, EJBQLNotEquals, EJBQLOrderBy, EJBQLOrderByItem, EJBQLPath, EJBQLPatternValue, EJBQLPositionalInputParameter, EJBQLSelect, EJBQLSelectClause, EJBQLSelectExpression, EJBQLSelectExpressions, EJBQLSize, EJBQLSqrt, EJBQLStringLiteral, EJBQLSubselect, EJBQLSubstring, EJBQLSubtract, EJBQLTok, EJBQLTrim, EJBQLTrimCharacter, EJBQLTrimSpecification, EJBQLUpdate, EJBQLUpdateField, EJBQLUpdateItem, EJBQLUpdateValue, EJBQLUpper, EJBQLWhere

public abstract class SimpleNode
extends Object
implements Node, Serializable, EJBQLExpression
A base node for the EJBQL concrete nodes that satisfies JJTree requirements.
See Also:
Serialized Form
  • Constructor Details

    • SimpleNode

      public SimpleNode​(int id)
  • Method Details

    • getText

      public String getText()
      Description copied from interface: EJBQLExpression
      Returns a text property of the node.
      Specified by:
      getText in interface EJBQLExpression
    • isNegated

      public boolean isNegated()
      Description copied from interface: EJBQLExpression
      Returns an optional boolean flag that negates the value of the expression.
      Specified by:
      isNegated in interface EJBQLExpression
    • visit

      public void visit​(EJBQLExpressionVisitor visitor)
      A recursive visit method that passes a visitor to this node and all its children, depth first.
      Specified by:
      visit in interface EJBQLExpression
    • visitNode

      protected boolean visitNode​(EJBQLExpressionVisitor visitor)
      Visits this node without recursion. Default implementation simply returns true. Subclasses override this method to call an appropriate visitor method.
    • visitChild

      protected boolean visitChild​(EJBQLExpressionVisitor visitor, int childIndex)
      Recursively visits a child at the specified index. Subclasses override this method if they desire to implement callbacks after visiting each child.
    • getChild

      public EJBQLExpression getChild​(int index)
      Description copied from interface: EJBQLExpression
      Returns a child expression node at the specified index.
      Specified by:
      getChild in interface EJBQLExpression
    • getChildrenCount

      public int getChildrenCount()
      Description copied from interface: EJBQLExpression
      Returns a number of child operands of this expression node.
      Specified by:
      getChildrenCount in interface EJBQLExpression
    • getName

      public String getName()
    • jjtOpen

      public void jjtOpen()
      Description copied from interface: Node
      This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.
      Specified by:
      jjtOpen in interface Node
    • jjtClose

      public void jjtClose()
      Description copied from interface: Node
      This method is called after all the child nodes have been added.
      Specified by:
      jjtClose in interface Node
    • jjtSetParent

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

      public Node jjtGetParent()
      Specified by:
      jjtGetParent in interface Node
    • jjtAddChild

      public void jjtAddChild​(Node n, int i)
      Description copied from interface: Node
      This method tells the node to add its argument to the node's list of children.
      Specified by:
      jjtAddChild in interface Node
    • jjtGetChild

      public Node jjtGetChild​(int i)
      Description copied from interface: Node
      This method returns a child node. The children are numbered from zero, left to right.
      Specified by:
      jjtGetChild in interface Node
    • jjtGetNumChildren

      public int jjtGetNumChildren()
      Description copied from interface: Node
      Return the number of children the node has.
      Specified by:
      jjtGetNumChildren in interface Node
    • setText

      public void setText​(String text)
    • toString

      public String toString()
      toString in class Object