Use Predicate.not for readability

Author: jeffgbutler

src/site/markdown/docs/conditions.md

@@ -267,7 +267,7 @@ any null or blank string, and you want to trim all strings. This can be accompli
             .where(animalName, isIn("  Mouse", "  ", null, "", "Musk shrew  ")
                     .filter(Objects::nonNull)
                     .map(String::trim)
-                    .filter(st -> !st.isEmpty()))
+                    .filter(not(String::isEmpty)))
             .orderBy(id)
             .build()
             .render(RenderingStrategies.MYBATIS3);
@@ -284,7 +284,7 @@ public class MyInCondition {
         return SqlBuilder.isIn(values)
                .filter(Objects::nonNull)
                .map(String::trim)
-               .filter(st -> !st.isEmpty());
+               .filter(not(String::isEmpty));
     }
 }
 ```

src/test/java/examples/animal/data/MyInCondition.java

@@ -15,6 +15,8 @@
  */
 package examples.animal.data;
 
+import static java.util.function.Predicate.not;
+
 import java.util.Objects;
 
 import org.mybatis.dynamic.sql.SqlBuilder;
@@ -25,6 +27,6 @@ public static IsIn<String> isIn(String...values) {
         return SqlBuilder.isIn(values)
                 .filter(Objects::nonNull)
                 .map((String::trim))
-                .filter(st -> !st.isEmpty());
+                .filter(not(String::isEmpty));
     }
 }

src/test/java/examples/animal/data/OptionalConditionsWithPredicatesAnimalDataTest.java

@@ -20,6 +20,7 @@
 import static examples.animal.data.AnimalDataDynamicSqlSupport.bodyWeight;
 import static examples.animal.data.AnimalDataDynamicSqlSupport.brainWeight;
 import static examples.animal.data.AnimalDataDynamicSqlSupport.id;
+import static java.util.function.Predicate.not;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertAll;
 import static org.mybatis.dynamic.sql.SqlBuilder.*;
@@ -484,7 +485,7 @@ void testValueStreamTransformer() {
                     .where(animalName, isIn("  Mouse", "  ", null, "", "Musk shrew  ")
                             .filter(Objects::nonNull)
                                     .map(String::trim)
-                                    .filter(st -> !st.isEmpty()))
+                                    .filter(not(String::isEmpty)))
                     .orderBy(id)
                     .build()
                     .render(RenderingStrategies.MYBATIS3);