org.datanucleus.query.expression
Class CaseExpression

java.lang.Object
  org.datanucleus.query.expression.Expression
      org.datanucleus.query.expression.CaseExpression

public class CaseExpression
extends Expression

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

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.query.expression.Expression

Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary

Fields inherited from class org.datanucleus.query.expression.Expression

alias, left, LOCALISER, op, OP_ADD, OP_AND, 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

CaseExpression(Expression elseExpr)

Method Summary

void	addCondition(Expression whenExpr, Expression actionExpr)
Symbol	bind(SymbolTable symtbl) Method to bind the expression to the symbol table as appropriate.
java.util.Map<Expression,Expression>	getConditions()
Expression	getElseExpression()
java.lang.String	toString()

Methods inherited from class org.datanucleus.query.expression.Expression

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CaseExpression

public CaseExpression(Expression elseExpr)

Method Detail

addCondition

public void addCondition(Expression whenExpr,
                         Expression actionExpr)

getConditions

public java.util.Map<Expression,Expression> 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 java.lang.String toString()

Overrides:

toString in class java.lang.Object