org.hibernate.hql.internal.ast.tree

Class AbstractSelectExpression

java.lang.Object

antlr.BaseAST

antlr.CommonAST

org.hibernate.hql.internal.ast.tree.Node

org.hibernate.hql.internal.ast.tree.SqlNode

org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode

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

All Implemented Interfaces:

antlr.collections.AST, Serializable, InitializeableNode, SelectExpression

Direct Known Subclasses:

AggregateNode, BinaryArithmeticOperatorNode, BinaryLogicOperatorNode, CastFunctionNode, CountNode, FromReferenceNode, LiteralNode, MethodNode, NullNode, SearchedCaseNode, SimpleCaseNode, UnaryArithmeticNode, UnaryLogicOperatorNode

public abstract class AbstractSelectExpression
extends HqlSqlWalkerNode
implements SelectExpression

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

Author:

Joshua Davis

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

Constructors

Constructor and Description
AbstractSelectExpression()

Method Summary

Modifier and Type	Method and Description
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.