org.hibernate.hql.internal.ast.tree

Class NullNode

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

org.hibernate.hql.internal.ast.tree.NullNode

All Implemented Interfaces:

antlr.collections.AST, Serializable, InitializeableNode, SelectExpression

public class NullNode
extends AbstractSelectExpression

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

Constructors

Constructor and Description
NullNode()

Method Summary

Modifier and Type	Method and Description
Type	getDataType() Returns the data type of the select expression.
String	getRenderText(SessionFactoryImplementor sessionFactory) Retrieve the text to be used for rendering this particular node.
Object	getValue()
void	setScalarColumnText(int i) Appends AST nodes that represent the columns after the current AST node.

Methods inherited from class org.hibernate.hql.internal.ast.tree.AbstractSelectExpression

getAlias, getFromElement, getScalarColumnIndex, isConstructor, isReturnableEntity, isScalar, setAlias, setScalarColumn

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

getOriginalText, setDataType, setText

Methods inherited from class org.hibernate.hql.internal.ast.tree.Node

getColumn, getFilename, getLine, 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

setText

Constructor Detail

NullNode

public NullNode()

Method Detail

getDataType

public Type getDataType()

Description copied from interface: SelectExpression

Returns the data type of the select expression.

Specified by:

getDataType in interface SelectExpression

Overrides:

getDataType in class SqlNode

Returns:

The data type of the select expression.

setScalarColumnText

public void setScalarColumnText(int i)
                         throws antlr.SemanticException

Description copied from interface: SelectExpression

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 - if a semantic error occurs

getValue

public Object getValue()

getRenderText

public String getRenderText(SessionFactoryImplementor sessionFactory)

Description copied from class: Node

Retrieve the text to be used for rendering this particular node.

Overrides:

getRenderText in class Node

Parameters:

sessionFactory - The session factory

Returns:

The text to use for rendering