replaced findUnique by "default" method in interfaces. (#1124)

src/main/java/io/ebean/EbeanServer.java

@@ -1097,7 +1097,9 @@ public interface EbeanServer {
    */
   @Deprecated
   @Nullable
-  <T> T findUnique(Query<T> query, Transaction transaction);
+  default <T> T findUnique(Query<T> query, Transaction transaction) {
+    return findOne(query, transaction);
+  }
 
   /**
    * Execute as a delete query deleting the 'root level' beans that match the predicates
@@ -1190,7 +1192,9 @@ public interface EbeanServer {
    */
   @Deprecated
   @Nullable
-  SqlRow findUnique(SqlQuery query, Transaction transaction);
+  default SqlRow findUnique(SqlQuery query, Transaction transaction) {
+    return findOne(query, transaction);
+  }
 
   /**
    * Either Insert or Update the bean depending on its state.

src/main/java/io/ebean/ExpressionList.java

@@ -283,7 +283,9 @@ public interface ExpressionList<T> {
    */
   @Deprecated
   @Nullable
-  T findUnique();
+  default T findUnique() {
+    return findOne();
+  }
 
   /**
    * Execute find row count query in a background thread.

src/main/java/io/ebean/Query.java

@@ -871,7 +871,9 @@ public interface Query<T> {
    */
   @Deprecated
   @Nullable
-  T findUnique();
+  default T findUnique() {
+    return findOne();
+  }
 
   /**
    * Return versions of a @History entity bean.

src/main/java/io/ebean/SqlQuery.java

@@ -82,7 +82,9 @@ public interface SqlQuery extends Serializable {
    * Deprecated - please migrate to findOne().
    */
   @Deprecated
-  SqlRow findUnique();
+  default SqlRow findUnique() {
+    return findOne();
+  }
 
   /**
    * The same as bind for named parameters.

src/main/java/io/ebeaninternal/server/core/DefaultServer.java

@@ -1197,11 +1197,6 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     }
   }
 
-  @Override
-  public <T> T findUnique(Query<T> query, Transaction transaction) {
-    return findOne(query, transaction);
-  }
-
   @Override
   public <T> Optional<T> findOneOrEmpty(Query<T> query, Transaction transaction) {
     return Optional.ofNullable(findOne(query, transaction));
@@ -1528,11 +1523,6 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     }
   }
 
-  @Override
-  public SqlRow findUnique(SqlQuery query, Transaction t) {
-    return findOne(query, t);
-  }
-
   @Override
   public SqlRow findOne(SqlQuery query, Transaction t) {
 

src/main/java/io/ebeaninternal/server/expression/DefaultExpressionList.java

@@ -407,11 +407,6 @@ public class DefaultExpressionList<T> implements SpiExpressionList<T> {
     return query.findOneOrEmpty();
   }
 
-  @Override
-  public T findUnique() {
-    return query.findOne();
-  }
-
   @Override
   public ExpressionList<T> filterMany(String prop) {
     return query.filterMany(prop);

src/main/java/io/ebeaninternal/server/expression/FilterExpressionList.java

@@ -81,11 +81,6 @@ public class FilterExpressionList<T> extends DefaultExpressionList<T> {
     return rootQuery.findSet();
   }
 
-  @Override
-  public T findUnique() {
-    return rootQuery.findOne();
-  }
-
   @Override
   public ExpressionList<T> having() {
     throw new PersistenceException(notAllowedMessage);

src/main/java/io/ebeaninternal/server/expression/JunctionExpression.java

@@ -404,11 +404,6 @@ class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expression
     return exprList.findOneOrEmpty();
   }
 
-  @Override
-  public T findUnique() {
-    return exprList.findOne();
-  }
-
   @Override
   public Query<T> forUpdate() {
     return exprList.forUpdate();

src/main/java/io/ebeaninternal/server/querydefn/DefaultOrmQuery.java

@@ -1265,11 +1265,6 @@ public class DefaultOrmQuery<T> implements SpiQuery<T> {
     return server.findOneOrEmpty(this, null);
   }
 
-  @Override
-  public T findUnique() {
-    return findOne();
-  }
-
   @Override
   public FutureIds<T> findFutureIds() {
     return server.findFutureIds(this, null);

src/main/java/io/ebeaninternal/server/querydefn/DefaultRelationalQuery.java

@@ -72,11 +72,6 @@ public class DefaultRelationalQuery implements SpiSqlQuery {
     return Optional.ofNullable(findOne());
   }
 
-  @Override
-  public SqlRow findUnique() {
-    return findOne();
-  }
-
   @Override
   public DefaultRelationalQuery setParameter(int position, Object value) {
     bindParams.setParameter(position, value);