Package org.hibernate.hql.ast.tree

Interface SelectExpression

All Known Subinterfaces:
AggregatedSelectExpression
All Known Implementing Classes:
AbstractMapComponentNode, AbstractSelectExpression, AggregateNode, BinaryArithmeticOperatorNode, BooleanLiteralNode, Case2Node, CaseNode, CollectionFunction, ConstructorNode, CountNode, DotNode, FromReferenceNode, IdentNode, IndexNode, LiteralNode, MapEntryNode, MapKeyNode, MapValueNode, MethodNode, QueryNode, SelectExpressionImpl, UnaryArithmeticNode
public interface SelectExpression
Represents an element of a projection list, i.e. a select expression.

  • Method Details

    • getDataType

      Type getDataType()
      Returns the data type of the select expression.
      Returns:
      The data type of the select expression.

    • setScalarColumnText

      void setScalarColumnText(int i) throws antlr.SemanticException
      Appends AST nodes that represent the columns after the current AST node. (e.g. 'as col0_O_')
      Parameters:
      i - The index of the select expression in the projection list.
      Throws:
      antlr.SemanticException

    • setScalarColumn

      void setScalarColumn(int i) throws antlr.SemanticException
      Sets the index and text for select expression in the projection list.
      Parameters:
      i - The index of the select expression in the projection list.
      Throws:
      antlr.SemanticException

    • getScalarColumnIndex

      int getScalarColumnIndex()
      Gets index of the select expression in the projection list.

    • getFromElement

      FromElement getFromElement()
      Returns the FROM element that this expression refers to.
      Returns:
      The FROM element.

    • isConstructor

      boolean isConstructor()
      Returns true if the element is a constructor (e.g. new Foo).
      Returns:
      true if the element is a constructor (e.g. new Foo).

    • isReturnableEntity

      boolean isReturnableEntity() throws antlr.SemanticException
      Returns true if this select expression represents an entity that can be returned.
      Returns:
      true if this select expression represents an entity that can be returned.
      Throws:
      antlr.SemanticException

    • setText

      void setText(String text)
      Sets the text of the node.
      Parameters:
      text - the new node text.

    • isScalar

      boolean isScalar() throws antlr.SemanticException
      Throws:
      antlr.SemanticException

    • setAlias

      void setAlias(String alias)

    • getAlias

      String getAlias()