Author: erans
Date: Sat Nov 13 20:58:20 2010
New Revision: 1034870
URL: http://svn.apache.org/viewvc?rev=1034870&view=rev
Log:
MATH-441
Removed uses of "FunctionEvaluationException" and "MathRuntimeException".
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/analysis/polynomials/PolynomialFunctionNewtonForm.java
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/analysis/polynomials/PolynomialFunctionNewtonForm.java
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math/analysis/polynomials/PolynomialFunctionNewtonForm.java?rev=1034870&r1=1034869&r2=1034870&view=diff
==============================================================================
---
commons/proper/math/trunk/src/main/java/org/apache/commons/math/analysis/polynomials/PolynomialFunctionNewtonForm.java
(original)
+++
commons/proper/math/trunk/src/main/java/org/apache/commons/math/analysis/polynomials/PolynomialFunctionNewtonForm.java
Sat Nov 13 20:58:20 2010
@@ -16,8 +16,9 @@
*/
package org.apache.commons.math.analysis.polynomials;
-import org.apache.commons.math.exception.FunctionEvaluationException;
-import org.apache.commons.math.MathRuntimeException;
+import org.apache.commons.math.exception.NullArgumentException;
+import org.apache.commons.math.exception.NoDataException;
+import org.apache.commons.math.exception.DimensionMismatchException;
import org.apache.commons.math.analysis.UnivariateRealFunction;
import org.apache.commons.math.exception.util.LocalizedFormats;
@@ -66,12 +67,14 @@ public class PolynomialFunctionNewtonFor
* <p>
* The constructor makes copy of the input arrays and assigns them.</p>
*
- * @param a the coefficients in Newton form formula
- * @param c the centers
- * @throws IllegalArgumentException if input arrays are not valid
+ * @param a Coefficients in Newton form formula.
+ * @param c Centers.
+ * @throws NullArgumentException if any argument is {...@code null}.
+ * @throws NoDataException if any array has zero length.
+ * @throws DimensionMismatchException if the size difference between
+ * {...@code a} and {...@code c} is not equal to 1.
*/
- public PolynomialFunctionNewtonForm(double a[], double c[])
- throws IllegalArgumentException {
+ public PolynomialFunctionNewtonForm(double a[], double c[]) {
verifyInputArray(a, c);
this.a = new double[a.length];
@@ -84,12 +87,10 @@ public class PolynomialFunctionNewtonFor
/**
* Calculate the function value at the given point.
*
- * @param z the point at which the function value is to be computed
- * @return the function value
- * @throws FunctionEvaluationException if a runtime error occurs
- * @see UnivariateRealFunction#value(double)
+ * @param z Point at which the function value is to be computed.
+ * @return the function value.
*/
- public double value(double z) throws FunctionEvaluationException {
+ public double value(double z) {
return evaluate(a, c, z);
}
@@ -120,7 +121,7 @@ public class PolynomialFunctionNewtonFor
* <p>
* Changes made to the returned copy will not affect the polynomial.</p>
*
- * @return a fresh copy of the centers array
+ * @return a fresh copy of the centers array.
*/
public double[] getCenters() {
double[] out = new double[c.length];
@@ -133,7 +134,7 @@ public class PolynomialFunctionNewtonFor
* <p>
* Changes made to the returned copy will not affect the polynomial.</p>
*
- * @return a fresh copy of the coefficients array
+ * @return a fresh copy of the coefficients array.
*/
public double[] getCoefficients() {
if (!coefficientsComputed) {
@@ -149,21 +150,21 @@ public class PolynomialFunctionNewtonFor
* also called <a href="http://mathworld.wolfram.com/HornersRule.html";>
* Horner's Rule</a> and takes O(N) time.
*
- * @param a the coefficients in Newton form formula
- * @param c the centers
- * @param z the point at which the function value is to be computed
- * @return the function value
- * @throws FunctionEvaluationException if a runtime error occurs
- * @throws IllegalArgumentException if inputs are not valid
+ * @param a Coefficients in Newton form formula.
+ * @param c Centers.
+ * @param z Point at which the function value is to be computed.
+ * @return the function value.
+ * @throws NullArgumentException if any argument is {...@code null}.
+ * @throws NoDataException if any array has zero length.
+ * @throws DimensionMismatchException if the size difference between
+ * {...@code a} and {...@code c} is not equal to 1.
*/
- public static double evaluate(double a[], double c[], double z) throws
- FunctionEvaluationException, IllegalArgumentException {
-
+ public static double evaluate(double a[], double c[], double z) {
verifyInputArray(a, c);
- int n = c.length;
+ final int n = c.length;
double value = a[n];
- for (int i = n-1; i >= 0; i--) {
+ for (int i = n - 1; i >= 0; i--) {
value = a[i] + (z - c[i]) * value;
}
@@ -201,21 +202,21 @@ public class PolynomialFunctionNewtonFor
*
* @param a the coefficients in Newton form formula
* @param c the centers
- * @throws IllegalArgumentException if not valid
+ * @throws NullArgumentException if any argument is {...@code null}.
+ * @throws NoDataException if any array has zero length.
+ * @throws DimensionMismatchException if the size difference between
+ * {...@code a} and {...@code c} is not equal to 1.
* @see
org.apache.commons.math.analysis.interpolation.DividedDifferenceInterpolator#computeDividedDifference(double[],
* double[])
*/
- protected static void verifyInputArray(double a[], double c[]) throws
- IllegalArgumentException {
-
- if (a.length < 1 || c.length < 1) {
- throw MathRuntimeException.createIllegalArgumentException(
- LocalizedFormats.EMPTY_POLYNOMIALS_COEFFICIENTS_ARRAY);
+ protected static void verifyInputArray(double a[], double c[]) {
+ if (a.length == 0 ||
+ c.length == 0) {
+ throw new
NoDataException(LocalizedFormats.EMPTY_POLYNOMIALS_COEFFICIENTS_ARRAY);
}
if (a.length != c.length + 1) {
- throw MathRuntimeException.createIllegalArgumentException(
- LocalizedFormats.ARRAY_SIZES_SHOULD_HAVE_DIFFERENCE_1,
- a.length, c.length);
+ throw new
DimensionMismatchException(LocalizedFormats.ARRAY_SIZES_SHOULD_HAVE_DIFFERENCE_1,
+ a.length, c.length);
}
}
}
