IlvExpressionEvaluation (Perforce JViews 10.0 API)

java.lang.Object
- ilog.views.util.styling.runtime.IlvExpressionEvaluation

```
public class IlvExpressionEvaluation
extends Object
```
This class contains routines for the evaluation of expressions in CSS declarations.

Since:

JViews 8.8

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static Color`	`brighterColor(Object v)` Implements the `brighterColor(arg)` function of CSS expressions.
`static Class<?>`	`classForName(String className)` Returns the class object for a given class name.
`static String`	`concat(Object[] args)` Implements the `concat(arg1,...`
`static double`	`convertDoubleFunctionArgument(Object arg)` Converts an argument of the `double(arg1, op1, arg2, ...)`
`static long`	`convertLongFunctionArgument(Object arg)` Converts an argument of the `long(arg1, op1, arg2, ...)`
`static long`	`convertNumberStringToLong(String s)` Converts a string argument of the `long(arg1, op1, arg2, ...)`
`static boolean`	`convertToBoolean(Object v)` Converts the given value to a `boolean`.
`static byte`	`convertToByte(Object v)` Converts the given value to a `byte`.
`static double`	`convertToDouble(Object v)` Converts the given value to a `double`.
`static float`	`convertToFloat(Object v)` Converts the given value to a `float`.
`static int`	`convertToInt(Object v)` Converts the given value to an `int`.
`static long`	`convertToLong(Object v)` Converts the given value to a `long`.
`static short`	`convertToShort(Object v)` Converts the given value to a `short`.
`static String`	`convertToString(Object v)` Converts the given value to a `String`.
`static Object`	`convertToType(Object v, Object clazzOrClazzName)` Implements the `cast(value,typeAsString)` function of CSS expressions.
`static String`	`customFormat(Object formatBean, Object[] args)` Implements the `customFormat(formatBean,arg0,arg1,...)`
`static Color`	`darkerColor(Object v)` Implements the `darkerColor(arg)` function of CSS expressions.
`static String`	`decimalFormat(Object formatArg, double arg, Locale locale)` Implements the `decimalFormat(format, arg)` function of CSS expressions compiled with JViews 8.7 or older.
`static String`	`decimalFormat(Object formatArg, double arg, com.ibm.icu.util.ULocale locale, String numberSystem)` Implements the `decimalFormat(format, arg)` function of CSS expressions.
`static String`	`decimalFormat(Object formatArg, long arg, Locale locale)` Implements the `decimalFormat(format, arg)` function of CSS expressions compiled with JViews 8.7 or older.
`static String`	`decimalFormat(Object formatArg, long arg, com.ibm.icu.util.ULocale locale, String numberSystem)` Implements the `decimalFormat(format, arg)` function of CSS expressions.
`static String`	`decimalFormat(Object formatArg, Object arg, Locale locale)` Implements the `decimalFormat(format, arg)` function of CSS expressions compiled with JViews 8.7 or older.
`static String`	`decimalFormat(Object formatArg, Object arg, com.ibm.icu.util.ULocale locale, String numberSystem)` Implements the `decimalFormat(format, arg)` function of CSS expressions.
`static double`	`divide(double arg1, double arg2)` Implements the "/" operator of CSS expressions.
`static double`	`doubleExpr(Object[] args)` Implements the `double(arg1, op1, arg2, ...)`
`static String`	`emptyString()` Implements the `emptyString()` function of CSS expressions.
`static boolean`	`equals(Object arg1, Object arg2)` Implements the "==" operator of CSS expressions.
`static float`	`floatExpr(Object[] args)` Implements the `float(arg1, op1, arg2, ...)`
`static int`	`intExpr(Object[] args)` Implements the `int(arg1, op1, arg2, ...)`
`static Object`	`invokeConstructor(Class<?> clazz, Class<?>[] parameterTypes, Object[] args)` Implements the `new(className,signature,...)`
`static Object`	`invokeConstructor(String className, String signature, Object[] args)` Implements the `new(className,signature,...)`
`static Object`	`invokeMethod(Object obj, String methodName, Class<?>[] parameterTypes, Object[] args)` Implements the `invoke(value,methodName,signature,...)`
`static Object`	`invokeMethod(Object obj, String methodName, String signature, Object[] args)` Implements the `invoke(value,methodName,signature,...)`
`static Object`	`invokeStaticMethod(Class<?> clazz, String methodName, Class<?>[] parameterTypes, Object[] args)` Implements the `invokeStatic(className,methodName,signature,...)`
`static Object`	`invokeStaticMethod(String className, String methodName, String signature, Object[] args)` Implements the `invokeStatic(className,methodName,signature,...)`
`static Object`	`localized(Object resourceBundleNameArg, Object resourceNameArg, Object localeArg, Locale defaultLocale)` Implements the `localized(resourceBundleName, resourceName[, locale])` function of CSS expressions.
`static long`	`longExpr(Object[] args)` Implements the `long(arg1, op1, arg2, ...)`
`static Number`	`max(Object[] args)` Implements the `max(arg1,...`
`static String`	`messageFormat(Object formatArg, Object[] args, Locale locale)` Implements the `messageFormat(format,arg0,arg1,...)`
`static String`	`messageFormat(Object formatArg, Object[] args, com.ibm.icu.util.ULocale locale)` Implements the `messageFormat(format,arg0,arg1,...)`
`static Number`	`min(Object[] args)` Implements the `min(arg1,...`
`static boolean`	`notEquals(Object arg1, Object arg2)` Implements the "!
`static Object`	`plus(Object arg1, Object arg2)` Implements the "+" operator of CSS expressions.
`static double`	`random()` Implements the `random()` function of CSS expressions.
`static double`	`random(double n)` Implements the `random(n)` function of CSS expressions.
`static float`	`random(float n)` Implements the `random(n)` function of CSS expressions.
`static int`	`random(int n)` Implements the `random(n)` function of CSS expressions.
`static long`	`random(long n)` Implements the `random(n)` function of CSS expressions.
`static Number`	`random(Object arg)` Implements the `random(n)` function of CSS expressions.
`static long`	`remainder(long arg1, long arg2)` Implements the "%" operator of CSS expressions.
`static String`	`simpleDateFormat(Object formatArg, Object arg, Locale locale)` Implements the `simpleDateFormat(format, arg)` function of CSS expressions compiled with JViews 8.7 or older.
`static String`	`simpleDateFormat(Object formatArg, Object arg, Object localeArg, com.ibm.icu.util.ULocale defaultLocale)` Implements the `simpleDateFormat(format, arg[, locale])` function of CSS expressions.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - convertToLong
```
public static long convertToLong(Object v)
```
    Converts the given value to a long.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToInt
```
public static int convertToInt(Object v)
```
    Converts the given value to an int.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToShort
```
public static short convertToShort(Object v)
```
    Converts the given value to a short.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToByte
```
public static byte convertToByte(Object v)
```
    Converts the given value to a byte.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToDouble
```
public static double convertToDouble(Object v)
```
    Converts the given value to a double.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToFloat
```
public static float convertToFloat(Object v)
```
    Converts the given value to a float.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToBoolean
```
public static boolean convertToBoolean(Object v)
```
    Converts the given value to a boolean.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToString
```
public static String convertToString(Object v)
```
    Converts the given value to a String.
    
    Parameters:
    
    v - The evaluation result of a subexpression.
  - convertToType
```
public static Object convertToType(Object v,
                                   Object clazzOrClazzName)
```
    Implements the cast(value,typeAsString) function of CSS expressions.
    Converts a given value to a type. If the class name is given as string, the class name must be fully qualified. The primitive type keywords "int", "long" ... are also accepted. Array types are indicated by the brackets, for instance "int[][][]".
    
    Parameters:
    
    v - The evaluation result of a subexpression.
    
    clazzOrClazzName - A string describing a class, or the class itself.
  - classForName
```
public static Class<?> classForName(String className)
```
    Returns the class object for a given class name.
    
    Parameters:
    
    className - A class name. Array classes and type parameters (generics) are not supported here.
    
    Returns:
    
    A class object.
    
    Throws:
    
    IllegalArgumentException - if the class could not be found or loaded
  - invokeMethod
```
public static Object invokeMethod(Object obj,
                                  String methodName,
                                  String signature,
                                  Object[] args)
```
    Implements the invoke(value,methodName,signature,...) function of CSS expressions.
    Invokes a method via introspection.
    
    Parameters:
    
    obj - The object on which the method is to be called.
    
    methodName - The name of a public method on the object.
    
    signature - The argument types of the method, as a string. It contains the fully qualified parameter types, without type parameters (generics), separated by commas and optionally spaces. The syntax of the parameter types is the same as in convertToType(java.lang.Object, java.lang.Object). An example signature is "java.lang.String,int[][],boolean".
    
    args - The arguments to be passed to the method.
  - invokeMethod
```
public static Object invokeMethod(Object obj,
                                  String methodName,
                                  Class<?>[] parameterTypes,
                                  Object[] args)
```
    Implements the invoke(value,methodName,signature,...) function of CSS expressions.
    Invokes a method via introspection.
    
    Parameters:
    
    obj - The object on which the method is to be called.
    
    methodName - The name of a public method on the object.
    
    parameterTypes - The argument types of the method.
    
    args - The arguments to be passed to the method.
  - invokeStaticMethod
```
public static Object invokeStaticMethod(String className,
                                        String methodName,
                                        String signature,
                                        Object[] args)
```
    Implements the invokeStatic(className,methodName,signature,...) function of CSS expressions.
    Invokes a static method via introspection.
    
    Parameters:
    
    className - The fully-qualified name of a class.
    
    methodName - The name of a public static method on the class.
    
    signature - The argument types of the method, as a string. It contains the fully qualified parameter types, without type parameters (generics), separated by commas and optionally spaces. The syntax of the parameter types is the same as in convertToType(java.lang.Object, java.lang.Object). An example signature is "java.lang.String,int[][],boolean".
    
    args - The arguments to be passed to the method.
  - invokeStaticMethod
```
public static Object invokeStaticMethod(Class<?> clazz,
                                        String methodName,
                                        Class<?>[] parameterTypes,
                                        Object[] args)
```
    Implements the invokeStatic(className,methodName,signature,...) function of CSS expressions.
    Invokes a static method via introspection.
    
    Parameters:
    
    clazz - A class.
    
    methodName - The name of a public static method on the class.
    
    parameterTypes - The argument types of the method.
    
    args - The arguments to be passed to the method.
  - invokeConstructor
```
public static Object invokeConstructor(String className,
                                       String signature,
                                       Object[] args)
```
    Implements the new(className,signature,...) function of CSS expressions.
    Invokes a constructor via introspection.
    
    Parameters:
    
    className - The fully-qualified name of a class.
    
    signature - The argument types of the constructor, as a string. It contains the fully qualified parameter types, without type parameters (generics), separated by commas and optionally spaces. The syntax of the parameter types is the same as in convertToType(java.lang.Object, java.lang.Object). An example signature is "java.lang.String,int[][],boolean".
    
    args - The arguments to be passed to the constructor.
  - invokeConstructor
```
public static Object invokeConstructor(Class<?> clazz,
                                       Class<?>[] parameterTypes,
                                       Object[] args)
```
    Implements the new(className,signature,...) function of CSS expressions.
    Invokes a constructor via introspection.
    
    Parameters:
    
    clazz - A class.
    
    parameterTypes - The argument types of the constructor.
    
    args - The arguments to be passed to the constructor.
  - equals
```
public static boolean equals(Object arg1,
                             Object arg2)
```
    Implements the "==" operator of CSS expressions.
  - notEquals
```
public static boolean notEquals(Object arg1,
                                Object arg2)
```
    Implements the "!=" operator of CSS expressions.
  - plus
```
public static Object plus(Object arg1,
                          Object arg2)
```
    Implements the "+" operator of CSS expressions.
  - divide
```
public static double divide(double arg1,
                            double arg2)
```
    Implements the "/" operator of CSS expressions.
  - remainder
```
public static long remainder(long arg1,
                             long arg2)
```
    Implements the "%" operator of CSS expressions.
  - concat
```
public static String concat(Object[] args)
```
    Implements the concat(arg1,...,argn) function of CSS expressions.
    Returns the concatenation of the arguments arg1,..., argn as strings.
  - emptyString
```
public static String emptyString()
```
    Implements the emptyString() function of CSS expressions.
    Returns an empty string.
  - messageFormat
```
public static String messageFormat(Object formatArg,
                                   Object[] args,
                                   Locale locale)
```
    Implements the messageFormat(format,arg0,arg1,...) function of CSS expressions compiled with JViews 8.7 or older.
    Returns a formatted string. The formatting is done through the MessageFormat object corresponding to the first argument. See class MessageFormat for details.
  - messageFormat
```
public static String messageFormat(Object formatArg,
                                   Object[] args,
                                   com.ibm.icu.util.ULocale locale)
```
    Implements the messageFormat(format,arg0,arg1,...) function of CSS expressions.
    Returns a formatted string. The formatting is done through the MessageFormat object corresponding to the first argument. See class MessageFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   Object arg,
                                   Locale locale)
```
    Implements the decimalFormat(format, arg) function of CSS expressions compiled with JViews 8.7 or older.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   Object arg,
                                   com.ibm.icu.util.ULocale locale,
                                   String numberSystem)
```
    Implements the decimalFormat(format, arg) function of CSS expressions.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   long arg,
                                   Locale locale)
```
    Implements the decimalFormat(format, arg) function of CSS expressions compiled with JViews 8.7 or older.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   long arg,
                                   com.ibm.icu.util.ULocale locale,
                                   String numberSystem)
```
    Implements the decimalFormat(format, arg) function of CSS expressions.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   double arg,
                                   Locale locale)
```
    Implements the decimalFormat(format, arg) function of CSS expressions compiled with JViews 8.7 or older.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - decimalFormat
```
public static String decimalFormat(Object formatArg,
                                   double arg,
                                   com.ibm.icu.util.ULocale locale,
                                   String numberSystem)
```
    Implements the decimalFormat(format, arg) function of CSS expressions.
    Returns a formatted string. The formatting is done through the DecimalFormat object corresponding to the first argument. See class DecimalFormat for details.
  - simpleDateFormat
```
public static String simpleDateFormat(Object formatArg,
                                      Object arg,
                                      Locale locale)
```
    Implements the simpleDateFormat(format, arg) function of CSS expressions compiled with JViews 8.7 or older.
    Returns a formatted string. The formatting is done through the SimpleDateFormat object corresponding to the first argument. See class SimpleDateFormat for details.
  - simpleDateFormat
```
public static String simpleDateFormat(Object formatArg,
                                      Object arg,
                                      Object localeArg,
                                      com.ibm.icu.util.ULocale defaultLocale)
```
    Implements the simpleDateFormat(format, arg[, locale]) function of CSS expressions.
    Returns a formatted string. The formatting is done through the SimpleDateFormat object corresponding to the first argument. See class SimpleDateFormat for details.
  - customFormat
```
public static String customFormat(Object formatBean,
                                  Object[] args)
```
    Implements the customFormat(formatBean,arg0,arg1,...) function of CSS expressions.
    Returns a formatted string. formatBean must be a Java object of type MessageFormat, NumberFormat, or DateFormat.
  - localized
```
public static Object localized(Object resourceBundleNameArg,
                               Object resourceNameArg,
                               Object localeArg,
                               Locale defaultLocale)
```
    Implements the localized(resourceBundleName, resourceName[, locale]) function of CSS expressions.
    Returns the localized value of the designated resource, fetched from a ResourceBundle, usually a string. The locale argument may be null.
  - convertDoubleFunctionArgument
```
public static double convertDoubleFunctionArgument(Object arg)
```
    Converts an argument of the double(arg1, op1, arg2, ...) and float(arg1, op1, arg2, ...) functions to a double value.
  - doubleExpr
```
public static double doubleExpr(Object[] args)
```
    Implements the double(arg1, op1, arg2, ...) function of CSS expressions.
    Evaluates the combination of arguments and operators as an expression. The operators can be "+", "-", "*", "/". The arguments are interpreted as numbers of type double. The result is a number of type double.
  - floatExpr
```
public static float floatExpr(Object[] args)
```
    Implements the float(arg1, op1, arg2, ...) function of CSS expressions.
    Evaluates the combination of arguments and operators as an expression. The operators can be "+", "-", "*", "/". The arguments are interpreted as numbers of type double. The result is a number of type float.
  - convertNumberStringToLong
```
public static long convertNumberStringToLong(String s)
```
    Converts a string argument of the long(arg1, op1, arg2, ...) and int(arg1, op1, arg2, ...) functions to a long value. This is like convertToLong(Object), except that it also allows floating-point numbers and converts them to long through truncation.
  - convertLongFunctionArgument
```
public static long convertLongFunctionArgument(Object arg)
```
    Converts an argument of the long(arg1, op1, arg2, ...) and int(arg1, op1, arg2, ...) functions to a long value.
  - longExpr
```
public static long longExpr(Object[] args)
```
    Implements the long(arg1, op1, arg2, ...) function of CSS expressions.
    Evaluates the combination of arguments and operators as an expression. The operators can be "+", "-", "*", "/". The arguments are interpreted as numbers of type long. The result is a number of type long.
  - intExpr
```
public static int intExpr(Object[] args)
```
    Implements the int(arg1, op1, arg2, ...) function of CSS expressions.
    Evaluates the combination of arguments and operators as an expression. The operators can be "+", "-", "*", "/". The arguments are interpreted as numbers of type long. The result is a number of type int.
  - random
```
public static double random()
```
    Implements the random() function of CSS expressions.
    Returns a random number between 0 (inclusive) and 1 (exclusive).
  - random
```
public static Number random(Object arg)
```
    Implements the random(n) function of CSS expressions.
    Returns a random number between 0 (inclusive) and n (exclusive).
  - random
```
public static int random(int n)
```
    Implements the random(n) function of CSS expressions.
    Returns a random number between 0 (inclusive) and n (exclusive).
  - random
```
public static long random(long n)
```
    Implements the random(n) function of CSS expressions.
    Returns a random number between 0 (inclusive) and n (exclusive).
  - random
```
public static float random(float n)
```
    Implements the random(n) function of CSS expressions.
    Returns a random number between 0 (inclusive) and n (exclusive).
  - random
```
public static double random(double n)
```
    Implements the random(n) function of CSS expressions.
    Returns a random number between 0 (inclusive) and n (exclusive).
  - min
```
public static Number min(Object[] args)
```
    Implements the min(arg1,...,argn) function of CSS expressions.
    Returns the minimum of the arguments arg1,..., argn as numbers.
  - max
```
public static Number max(Object[] args)
```
    Implements the max(arg1,...,argn) function of CSS expressions.
    Returns the maximum of the arguments arg1,..., argn as numbers.
  - brighterColor
```
public static Color brighterColor(Object v)
```
    Implements the brighterColor(arg) function of CSS expressions.
  - darkerColor
```
public static Color darkerColor(Object v)
```
    Implements the darkerColor(arg) function of CSS expressions.

Class IlvExpressionEvaluation

Method Summary

Methods inherited from class java.lang.Object

Method Detail

convertToLong

convertToInt

convertToShort

convertToByte

convertToDouble

convertToFloat

convertToBoolean

convertToString

convertToType

classForName

invokeMethod

invokeMethod

invokeStaticMethod

invokeStaticMethod

invokeConstructor

invokeConstructor

equals

notEquals

plus

divide

remainder

concat

emptyString

messageFormat

messageFormat

decimalFormat

decimalFormat

decimalFormat

decimalFormat

decimalFormat

decimalFormat

simpleDateFormat

simpleDateFormat

customFormat

localized

convertDoubleFunctionArgument

doubleExpr

floatExpr

convertNumberStringToLong

convertLongFunctionArgument

longExpr

intExpr

random

random

random

random

random

random

min

max

brighterColor

darkerColor