MathRandom Class

com.bea.p13n.expression.operator.math
MathRandom Class

public final class MathRandom

    extends MathOperator
    implements BinaryOperator

Random number operator.

Input 1: A Number (or expression returning a Number) that is the minimum random number returned by the operator.
Input 2: A Number (or expression returning a Number) that is the maximum random number returned by the operator.
Returns: A Number: java.lang.Math.random() between LHS and RHS.

Hierarchy
Object
  ComplexExpressionImpl
    Operator
      MathOperator
        MathRandom
All Implemented Interfaces

BinaryOperator, Cloneable, Expression, Serializable

Field Summary
   
Fields from  com.bea.p13n.expression.operator.math.MathOperator
BINARY_PARAMETER_SIGNATURE, UNARY_PARAMETER_SIGNATURE
 
Fields from interface com.bea.p13n.expression.operator.BinaryOperator
LHS_INDEX, RHS_INDEX
 

Constructor Summary
MathRandom()
MathRandom(Object min, Object max)
 

Method Summary
public Object
getLeftHandSide()
Returns left hand side operand of this binary operator.
public Object
getMax()
Returns the maximum Number (or an expression returning a Number) that can be generated.
public Object
getMin()
Returns the minimum Number (or an expression returning a Number) that can be generated.
public Class[]
getParameterSignature()
Returns the parameter signature for this Expression.
public Object
getRightHandSide()
Returns right hand side operand of this binary operator.
 
Methods from  com.bea.p13n.expression.operator.Operator
leftHandSide, operand, rightHandSide
 
Methods from  com.bea.p13n.expression.internal.ComplexExpressionImpl
addListener, addSubExpression, clearCache, clone, createProxyExpression, equals, getCachedValue, getParent, getSource, getSubExpression, getSubExpressionCount, getUserData, hashCode, isCached, isCacheEnabled, isEqualitySubExpression, notifyListeners, removeAllSubExpressions, removeListener, removeSubExpression, removeSubExpression, setCachedValue, setCacheEnabled, setParent, setSource, setSubExpression, setUserData, toString, write
 
Methods from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
   
Methods from interface com.bea.p13n.expression.operator.BinaryOperator
getLeftHandSide, getRightHandSide
 
Methods from interface com.bea.p13n.expression.Expression
accept, addListener, addSubExpression, clearCache, clone, getCachedValue, getParameterSignature, getParent, getSource, getSubExpression, getSubExpressionCount, getUserData, isCached, isCacheEnabled, removeAllSubExpressions, removeListener, removeSubExpression, removeSubExpression, setCachedValue, setCacheEnabled, setSource, setSubExpression, setUserData, write
 

Constructor Detail

MathRandom

public MathRandom()

MathRandom

public MathRandom(Object min, 
                  Object max)
 

Method Detail

getLeftHandSide() Method

public Object getLeftHandSide()
Description copied from BinaryOperator.getLeftHandSide()
Returns left hand side operand of this binary operator.

Returns

The left hand side operand.

getMax() Method

public Object getMax()
Returns the maximum Number (or an expression returning a Number) that can be generated.

Returns

The maximum Number that can be generated.

getMin() Method

public Object getMin()
Returns the minimum Number (or an expression returning a Number) that can be generated.

Returns

The minimum Number that can be generated.

getParameterSignature() Method

public Class[] getParameterSignature()
Description copied from Expression.getParameterSignature()
Returns the parameter signature for this Expression. Because the sub-expressions within the Expression are typically arguments or operands, some type validation is performed by examining the class types of the sub-expressions against the Expression's parameter signature.
The tests that are performed are:
1. The number of sub-expressions must equals the number of parameter entries.
2. The class type of any sub-expression (or the result of evaluating the sub-expresssion) must equal the class type of the corresponding parameter entry.
3. Any null parameter entries are ignored and are considered optional sub-expressions.

Returns

the Class array containing the parameter signature.

getRightHandSide() Method

public Object getRightHandSide()
Description copied from BinaryOperator.getRightHandSide()
Returns right hand side operand of this binary operator.

Returns

The left hand side operand.