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

java.lang.Object
  extended by com.bea.p13n.expression.internal.ComplexExpressionImpl
      extended by com.bea.p13n.expression.operator.Operator
          extended by com.bea.p13n.expression.operator.math.MathOperator
              extended by com.bea.p13n.expression.operator.math.MathTan
All Implemented Interfaces
Expression, com.bea.p13n.expression.ExpressionEvents, UnaryOperator, Serializable, Cloneable

public final class MathTan
extends MathOperator
implements UnaryOperator

Arc tangent operator.

Input 1: A Number (or expression returning a Number) that is LHS of the operator.
Returns: A Number: java.lang.Math.tan( LHS ).

See Also
Serialized Form

Field Summary
 
Fields inherited from class com.bea.p13n.expression.operator.math.MathOperator
BINARY_PARAMETER_SIGNATURE, UNARY_PARAMETER_SIGNATURE
 
Fields inherited from interface com.bea.p13n.expression.operator.UnaryOperator
UNARY_OPERAND_INDEX
 
Fields inherited from interface com.bea.p13n.expression.ExpressionEvents
EVENT_ADD_SUBEXPRESSION, EVENT_CLEAR_CACHE, EVENT_INTERNAL_MAX, EVENT_REMOVE_SUBEXPRESSION, EVENT_SET_CACHE_ENABLED, EVENT_SET_CACHED_VALUE, EVENT_SET_PARENT, EVENT_SET_SOURCE, EVENT_SET_SUBEXPRESSION, EVENT_SET_USER_DATA
 
Constructor Summary
MathTan()
           
MathTan(Object lhs)
           
 
Method Summary
 Object getOperand()
          Returns unary operand.
 Class[] getParameterSignature()
          Returns the parameter signature for this Expression.
 
Methods inherited from class com.bea.p13n.expression.operator.Operator
leftHandSide, operand, rightHandSide
 
Methods inherited from class 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 inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

MathTan

public MathTan()

MathTan

public MathTan(Object lhs)
Method Detail

getOperand

public Object getOperand()
Description copied from interface: UnaryOperator
Returns unary operand.

Specified by:
getOperand in interface UnaryOperator
Returns
An unary operand.

getParameterSignature

public Class[] getParameterSignature()
Description copied from interface: Expression
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.

Specified by:
getParameterSignature in interface Expression
Returns
the Class array containing the parameter signature.


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