org.hibernate.hql.internal.ast.tree
Class AbstractSelectExpression

java.lang.Object
  extended by antlr.BaseAST
      extended by antlr.CommonAST
          extended by org.hibernate.hql.internal.ast.tree.Node
              extended by org.hibernate.hql.internal.ast.tree.SqlNode
                  extended by org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
                      extended by org.hibernate.hql.internal.ast.tree.AbstractSelectExpression
All Implemented Interfaces:
antlr.collections.AST, Serializable, InitializeableNode, SelectExpression
Direct Known Subclasses:
AggregateNode, BinaryArithmeticOperatorNode, Case2Node, CaseNode, CountNode, FromReferenceNode, LiteralNode, MethodNode, UnaryArithmeticNode

public abstract class AbstractSelectExpression
extends HqlSqlWalkerNode
implements SelectExpression

Partial implementation of SelectExpression for all the nodes that aren't constructors.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class antlr.BaseAST
down, right
 
Constructor Summary
AbstractSelectExpression()
           
 
Method Summary
 String getAlias()
           
 FromElement getFromElement()
          Returns the FROM element that this expression refers to.
 int getScalarColumnIndex()
          Gets index of the select expression in the projection list.
 boolean isConstructor()
          Returns true if the element is a constructor (e.g.
 boolean isReturnableEntity()
          Returns true if this select expression represents an entity that can be returned.
 boolean isScalar()
           
 void setAlias(String alias)
           
 void setScalarColumn(int i)
          Sets the index and text for select expression in the projection list.
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.SqlNode
getDataType, getOriginalText, setDataType, setText
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.Node
getColumn, getFilename, getLine, getRenderText, getTextLength, initialize, initialize
 
Methods inherited from class antlr.CommonAST
getText, getType, initialize, setType
 
Methods inherited from class antlr.BaseAST
addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.hibernate.hql.internal.ast.tree.SelectExpression
getDataType, setScalarColumnText, setText
 

Constructor Detail

AbstractSelectExpression

public AbstractSelectExpression()
Method Detail

setAlias

public final void setAlias(String alias)
Specified by:
setAlias in interface SelectExpression

getAlias

public final String getAlias()
Specified by:
getAlias in interface SelectExpression

isConstructor

public boolean isConstructor()
Description copied from interface: SelectExpression
Returns true if the element is a constructor (e.g. new Foo).

Specified by:
isConstructor in interface SelectExpression
Returns:
true if the element is a constructor (e.g. new Foo).

isReturnableEntity

public boolean isReturnableEntity()
                           throws antlr.SemanticException
Description copied from interface: SelectExpression
Returns true if this select expression represents an entity that can be returned.

Specified by:
isReturnableEntity in interface SelectExpression
Returns:
true if this select expression represents an entity that can be returned.
Throws:
antlr.SemanticException - if a semantic error occurs

getFromElement

public FromElement getFromElement()
Description copied from interface: SelectExpression
Returns the FROM element that this expression refers to.

Specified by:
getFromElement in interface SelectExpression
Returns:
The FROM element.

isScalar

public boolean isScalar()
                 throws antlr.SemanticException
Specified by:
isScalar in interface SelectExpression
Throws:
antlr.SemanticException

setScalarColumn

public void setScalarColumn(int i)
                     throws antlr.SemanticException
Description copied from interface: SelectExpression
Sets the index and text for select expression in the projection list.

Specified by:
setScalarColumn in interface SelectExpression
Parameters:
i - The index of the select expression in the projection list.
Throws:
antlr.SemanticException - if a semantic error occurs

getScalarColumnIndex

public int getScalarColumnIndex()
Description copied from interface: SelectExpression
Gets index of the select expression in the projection list.

Specified by:
getScalarColumnIndex in interface SelectExpression
Returns:
The index of the select expression in the projection list.


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