Class CaseExpression

java.lang.Object

org.datanucleus.store.query.expression.Expression

org.datanucleus.store.query.expression.CaseExpression

All Implemented Interfaces:

Serializable

public class CaseExpression
extends Expression

Expression representing a case series of when expressions and their action expressions.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	CaseExpression.ExpressionPair

Nested classes/interfaces inherited from class Expression

Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary

Fields

Modifier and Type	Field	Description
(package private) List<CaseExpression.ExpressionPair>	actionConditions
(package private) Expression	elseExpr
private static final long	serialVersionUID

Fields inherited from class Expression

alias, left, op, OP_ADD, OP_AND, OP_BIT_AND, OP_BIT_OR, OP_BIT_XOR, OP_CAST, OP_COM, OP_CONCAT, OP_DISTINCT, OP_DIV, OP_EQ, OP_GT, OP_GTEQ, OP_IN, OP_IS, OP_ISNOT, OP_LIKE, OP_LT, OP_LTEQ, OP_MOD, OP_MUL, OP_NEG, OP_NOT, OP_NOTEQ, OP_NOTIN, OP_OR, OP_SUB, parent, right, symbol

Constructor Summary

Constructors

Constructor	Description
CaseExpression()

Method Summary

Modifier and Type	Method	Description
void	addCondition(Expression whenExpr, Expression actionExpr)
Symbol	bind(SymbolTable symtbl)	Method to bind the expression to the symbol table as appropriate.
List<CaseExpression.ExpressionPair>	getConditions()
Expression	getElseExpression()
void	setElseExpression(Expression elseExpr)
String	toString()

Methods inherited from class Expression

evaluate, getAlias, getLeft, getOperator, getParent, getRight, getSymbol, setAlias, setLeft, setRight

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

actionConditions

List<CaseExpression.ExpressionPair> actionConditions

elseExpr

Expression elseExpr

Constructor Details

CaseExpression

public CaseExpression()

Method Details

addCondition

public void addCondition(Expression whenExpr,
 Expression actionExpr)

setElseExpression

public void setElseExpression(Expression elseExpr)

getConditions

public List<CaseExpression.ExpressionPair> getConditions()

getElseExpression

public Expression getElseExpression()

bind

public Symbol bind(SymbolTable symtbl)

Description copied from class: Expression

Method to bind the expression to the symbol table as appropriate.

Specified by:

bind in class Expression

Parameters:

symtbl - Symbol table

Returns:

The symbol for this expression

toString

public String toString()

Overrides:

toString in class Object