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Posted to commits@commons.apache.org by er...@apache.org on 2021/05/27 20:58:22 UTC
[commons-math] branch modularized_master updated: MATH-1588: Fit
into JDK 8 "function" API.
This is an automated email from the ASF dual-hosted git repository.
erans pushed a commit to branch modularized_master
in repository https://gitbox.apache.org/repos/asf/commons-math.git
The following commit(s) were added to refs/heads/modularized_master by this push:
new d92a3c6 MATH-1588: Fit into JDK 8 "function" API.
d92a3c6 is described below
commit d92a3c63358ef31014b8957cf24f5e7e31d4c269
Author: Gilles Sadowski <gi...@gmail.com>
AuthorDate: Thu May 27 22:56:48 2021 +0200
MATH-1588: Fit into JDK 8 "function" API.
---
.../commons/math4/legacy/analysis/BivariateFunction.java | 10 +++++++++-
.../commons/math4/legacy/analysis/UnivariateFunction.java | 12 ++++++++++--
2 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/BivariateFunction.java b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/BivariateFunction.java
index 19b5383..562aa32 100644
--- a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/BivariateFunction.java
+++ b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/BivariateFunction.java
@@ -17,12 +17,15 @@
package org.apache.commons.math4.legacy.analysis;
+import java.util.function.DoubleBinaryOperator;
+
/**
* An interface representing a bivariate real function.
*
* @since 2.1
*/
-public interface BivariateFunction {
+@FunctionalInterface
+public interface BivariateFunction extends DoubleBinaryOperator {
/**
* Compute the value for the function.
*
@@ -32,4 +35,9 @@ public interface BivariateFunction {
*/
double value(double x, double y);
+ /** {@inheritDoc} */
+ @Override
+ default double applyAsDouble(double x, double y) {
+ return value(x, y);
+ }
}
diff --git a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/UnivariateFunction.java b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/UnivariateFunction.java
index ff66cbb..43cfd61 100644
--- a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/UnivariateFunction.java
+++ b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/UnivariateFunction.java
@@ -16,6 +16,8 @@
*/
package org.apache.commons.math4.legacy.analysis;
+import java.util.function.DoubleUnaryOperator;
+
/**
* An interface representing a univariate real function.
* <p>
@@ -62,9 +64,9 @@ package org.apache.commons.math4.legacy.analysis;
*
* As shown, the exception is local to the user's code and it is guaranteed
* that Apache Commons Math will not catch it.
- *
*/
-public interface UnivariateFunction {
+@FunctionalInterface
+public interface UnivariateFunction extends DoubleUnaryOperator {
/**
* Compute the value of the function.
*
@@ -78,4 +80,10 @@ public interface UnivariateFunction {
* the method.
*/
double value(double x);
+
+ /** {@inheritDoc} */
+ @Override
+ default double applyAsDouble(double x) {
+ return value(x);
+ }
}