org.objectweb.medor.expression.lib
Class BasicUnaryArithmeticOperator

java.lang.Object
  extended byorg.objectweb.medor.clone.lib.BasicCloneable
      extended byorg.objectweb.medor.expression.lib.BasicExpression
          extended byorg.objectweb.medor.expression.lib.BasicOperator
              extended byorg.objectweb.medor.expression.lib.BasicUnaryOperator
                  extended byorg.objectweb.medor.expression.lib.BasicUnaryArithmeticOperator
All Implemented Interfaces:
org.objectweb.medor.clone.api.Cloneable, java.lang.Cloneable, Expression, Operator, java.io.Serializable, UnaryArithmeticOperator, UnaryOperator
Direct Known Subclasses:
Abs, Bitwize, UMinus

public abstract class BasicUnaryArithmeticOperator
extends BasicUnaryOperator
implements UnaryArithmeticOperator

Author:
Sebastien Chassande-Barrioz
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.objectweb.medor.expression.lib.BasicOperator
expressions, result, verified
 
Fields inherited from class org.objectweb.medor.expression.lib.BasicExpression
logger, type
 
Fields inherited from interface org.objectweb.medor.expression.api.Operator
ABS, AND, AVG, BITWIZE, CONCAT, CONDAND, CONDOR, COUNT, DIV, EQUAL, FIRSTLOCATE, GREATER, GREATEREQUAL, IN, INDEXEDLOCATE, LENGTH, LOWER, LOWEREQUAL, MAX, MEMBEROF, MIN, MINUS, MOD, MULT, NAV, NOT, NOTEQUAL, NOTMEMBEROF, OR, PLUS, SQRT, STRING_LOWER, STRING_UPPER, SUBSTRING, SUM, UMINUS
 
Constructor Summary
BasicUnaryArithmeticOperator()
           
BasicUnaryArithmeticOperator(Expression e)
           
BasicUnaryArithmeticOperator(org.objectweb.jorm.type.api.PType type)
           
BasicUnaryArithmeticOperator(org.objectweb.jorm.type.api.PType type, Expression e)
           
 
Method Summary
 Operand compileExpression()
          Checks the semantic integrity of an expression.
 Operand evaluate(ParameterOperand[] pos, java.lang.Object o)
          It evaluates the expression tree and puts the result into the operand result.
 
Methods inherited from class org.objectweb.medor.expression.lib.BasicUnaryOperator
getExpression, getExpression, getOperandNumber, setExpression, setExpression
 
Methods inherited from class org.objectweb.medor.expression.lib.BasicOperator
clone
 
Methods inherited from class org.objectweb.medor.expression.lib.BasicExpression
getType
 
Methods inherited from class org.objectweb.medor.clone.lib.BasicCloneable
clone, clone, getClone
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.objectweb.medor.expression.api.UnaryArithmeticOperator
evaluate, evaluate, evaluate, evaluate, evaluate, evaluate
 
Methods inherited from interface org.objectweb.medor.expression.api.UnaryOperator
getExpression, setExpression
 
Methods inherited from interface org.objectweb.medor.expression.api.Operator
getExpression, getOperandNumber, getOperatorString, setExpression
 
Methods inherited from interface org.objectweb.medor.expression.api.Expression
getType
 
Methods inherited from interface org.objectweb.medor.clone.api.Cloneable
clone
 

Constructor Detail

BasicUnaryArithmeticOperator

public BasicUnaryArithmeticOperator()

BasicUnaryArithmeticOperator

public BasicUnaryArithmeticOperator(org.objectweb.jorm.type.api.PType type)

BasicUnaryArithmeticOperator

public BasicUnaryArithmeticOperator(Expression e)

BasicUnaryArithmeticOperator

public BasicUnaryArithmeticOperator(org.objectweb.jorm.type.api.PType type,
                                    Expression e)
Method Detail

evaluate

public Operand evaluate(ParameterOperand[] pos,
                        java.lang.Object o)
                 throws ExpressionException
Description copied from interface: Expression
It evaluates the expression tree and puts the result into the operand result.

Specified by:
evaluate in interface Expression
Parameters:
pos - a list of ParameterOperand
o - the input Object from which values are taken for the evaluation
Returns:
an Operand containing the result of the evaluation
Throws:
ExpressionException

compileExpression

public Operand compileExpression()
                          throws ExpressionException,
                                 MalformedExpressionException
Description copied from interface: Expression
Checks the semantic integrity of an expression. It checks that all types are compatible and prepare the expression to be evaluable.It also creates buffers where stores the result. Notes that when evaluating there is no creation of new objects. This method change the state of this expression object, it will be evaluable and not modifiable.

Specified by:
compileExpression in interface Expression
Throws:
MalformedExpressionException - if syntax error
ExpressionException