org.hibernate.hql.internal.ast.tree

Class SimpleCaseNode

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.SimpleCaseNode

All Implemented Interfaces:

antlr.collections.AST, Serializable, ExpectedTypeAwareNode, InitializeableNode, SelectExpression

public class SimpleCaseNode
extends AbstractSelectExpression
implements SelectExpression, ExpectedTypeAwareNode

Models what ANSI SQL terms a simple case statement. This is a CASE expression in the form

 CASE [expression]
     WHEN [firstCondition] THEN [firstResult]
     WHEN [secondCondition] THEN [secondResult]
     ELSE [defaultResult]
 END
 

Author:

Gavin King, Steve Ebersole

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

Constructors

Constructor and Description
SimpleCaseNode()

Method Summary

Modifier and Type	Method and Description
Type	getDataType() Returns the data type of the select expression.
Type	getExpectedType()
void	setExpectedType(Type expectedType)
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, 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

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

Constructor Detail

SimpleCaseNode

public SimpleCaseNode()

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_')

Specified by:

setScalarColumnText in interface SelectExpression

Parameters:

i - The index of the select expression in the projection list.

Throws:

antlr.SemanticException - if a semantic error occurs

setExpectedType

public void setExpectedType(Type expectedType)

Specified by:

setExpectedType in interface ExpectedTypeAwareNode

getExpectedType

public Type getExpectedType()

Specified by:

getExpectedType in interface ExpectedTypeAwareNode