#869 - Clash on bind hash value for query cache with consecutive values of "01","20" and "02", "10"

src/main/java/com/avaje/ebeaninternal/server/expression/AllEqualsExpression.java

@@ -120,9 +120,9 @@ class AllEqualsExpression extends NonPrepareExpression {
   @Override
   public int queryBindHash() {
 
-    int hc = 31;
+    int hc = 92821;
     for (Object value : propMap.values()) {
-      hc = hc * 31 + (value == null ? 0 : value.hashCode());
+      hc = hc * 92821 + (value == null ? 0 : value.hashCode());
     }
 
     return hc;

src/main/java/com/avaje/ebeaninternal/server/expression/ArrayContainsExpression.java

@@ -52,7 +52,7 @@ public class ArrayContainsExpression extends AbstractExpression {
   public int queryBindHash() {
     int hc = values[0].hashCode();
     for (int i = 1; i < values.length; i++) {
-      hc = hc * 31 + values[i].hashCode();
+      hc = hc * 92821 + values[i].hashCode();
     }
     return hc;
   }

src/main/java/com/avaje/ebeaninternal/server/expression/ArrayIsEmptyExpression.java

@@ -30,7 +30,7 @@ public class ArrayIsEmptyExpression extends AbstractExpression {
 
   @Override
   public int queryBindHash() {
-    return empty ? 0 : 31;
+    return empty ? 0 : 92821;
   }
 
   @Override

src/main/java/com/avaje/ebeaninternal/server/expression/BetweenExpression.java

@@ -54,7 +54,7 @@ class BetweenExpression extends AbstractExpression {
   @Override
   public int queryBindHash() {
     int hc = low().hashCode();
-    hc = hc * 31 + high().hashCode();
+    hc = hc * 92821 + high().hashCode();
     return hc;
   }
 

src/main/java/com/avaje/ebeaninternal/server/expression/DefaultExampleExpression.java

@@ -230,9 +230,8 @@ public class DefaultExampleExpression implements SpiExpression, ExampleExpressio
   public int queryBindHash() {
     int hc = DefaultExampleExpression.class.getName().hashCode();
     for (int i = 0; i < list.size(); i++) {
-      hc = hc * 31 + list.get(i).queryBindHash();
+      hc = hc * 92821 + list.get(i).queryBindHash();
     }
-
     return hc;
   }
 

src/main/java/com/avaje/ebeaninternal/server/expression/DefaultExpressionList.java

@@ -511,7 +511,7 @@ public class DefaultExpressionList<T> implements SpiExpressionList<T> {
   public int queryBindHash() {
     int hash = DefaultExpressionList.class.getName().hashCode();
     for (int i = 0, size = list.size(); i < size; i++) {
-      hash = hash * 31 + list.get(i).queryBindHash();
+      hash = hash * 92821 + list.get(i).queryBindHash();
     }
     return hash;
   }

src/main/java/com/avaje/ebeaninternal/server/expression/InExpression.java

@@ -119,9 +119,9 @@ class InExpression extends AbstractExpression {
 
   @Override
   public int queryBindHash() {
-    int hc = 31;
+    int hc = 92821;
     for (int i = 0; i < bindValues.length; i++) {
-      hc = 31 * hc + bindValues[i].hashCode();
+      hc = 92821 * hc + bindValues[i].hashCode();
     }
     return hc;
   }

src/main/java/com/avaje/ebeaninternal/server/expression/JsonPathExpression.java

@@ -79,7 +79,7 @@ class JsonPathExpression extends AbstractExpression {
   @Override
   public int queryBindHash() {
     int hc = (value == null) ? 0 : value.hashCode();
-    hc = (upperValue == null) ? hc : hc * 31 + upperValue.hashCode();
+    hc = (upperValue == null) ? hc : hc * 92821 + upperValue.hashCode();
     return hc;
   }
 

src/main/java/com/avaje/ebeaninternal/server/expression/JunctionExpression.java

@@ -204,7 +204,7 @@ class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expression
     int hc = JunctionExpression.class.getName().hashCode();
     List<SpiExpression> list = exprList.internalList();
     for (int i = 0; i < list.size(); i++) {
-      hc = hc * 31 + list.get(i).queryBindHash();
+      hc = hc * 92821 + list.get(i).queryBindHash();
     }
     return hc;
   }

src/main/java/com/avaje/ebeaninternal/server/expression/LogicExpression.java

@@ -146,7 +146,7 @@ abstract class LogicExpression implements SpiExpression {
   @Override
   public int queryBindHash() {
     int hc = expOne.queryBindHash();
-    hc = hc * 31 + expTwo.queryBindHash();
+    hc = hc * 92821 + expTwo.queryBindHash();
     return hc;
   }