Add support for calling where with no parameters

src/main/java/org/mybatis/dynamic/sql/SqlBuilder.java

@@ -133,6 +133,10 @@ static UpdateDSL<UpdateModel> update(SqlTable table) {
         return UpdateDSL.update(table);
     }
 
+    static WhereDSL where() {
+        return WhereDSL.where();
+    }
+
     static <T> WhereDSL where(BindableColumn<T> column, VisitableCondition<T> condition) {
         return WhereDSL.where(column, condition);
     }

src/main/java/org/mybatis/dynamic/sql/delete/DeleteDSL.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2016-2017 the original author or authors.
+ *    Copyright 2016-2019 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -35,6 +35,10 @@ private DeleteDSL(SqlTable table, Function<DeleteModel, R> adapterFunction) {
         this.adapterFunction = Objects.requireNonNull(adapterFunction);
     }
 
+    public DeleteWhereBuilder where() {
+        return new DeleteWhereBuilder();
+    }
+
     public <T> DeleteWhereBuilder where(BindableColumn<T> column, VisitableCondition<T> condition) {
         return new DeleteWhereBuilder(column, condition);
     }
@@ -70,6 +74,10 @@ public static <T> DeleteDSL<MyBatis3DeleteModelAdapter<T>> deleteFromWithMapper(
 
     public class DeleteWhereBuilder extends AbstractWhereDSL<DeleteWhereBuilder> {
 
+        private <T> DeleteWhereBuilder() {
+            super();
+        }
+
         private <T> DeleteWhereBuilder(BindableColumn<T> column, VisitableCondition<T> condition) {
             super(column, condition);
         }

src/main/java/org/mybatis/dynamic/sql/select/QueryExpressionDSL.java

@@ -82,6 +82,10 @@ public static <R> FromGatherer<R> selectDistinct(SelectDSL<R> selectDSL, BasicCo
                 .build();
     }
 
+    public QueryExpressionWhereBuilder where() {
+        return new QueryExpressionWhereBuilder();
+    }
+
     public <T> QueryExpressionWhereBuilder where(BindableColumn<T> column, VisitableCondition<T> condition) {
         return new QueryExpressionWhereBuilder(column, condition);
     }
@@ -261,6 +265,10 @@ public FromGatherer<R> build() {
 
     public class QueryExpressionWhereBuilder extends AbstractWhereDSL<QueryExpressionWhereBuilder>
             implements Buildable<R> {
+        private <T> QueryExpressionWhereBuilder() {
+            buildDelegateMethod = this::internalBuild;
+        }
+
         private <T> QueryExpressionWhereBuilder(BindableColumn<T> column, VisitableCondition<T> condition) {
             super(column, condition);
             buildDelegateMethod = this::internalBuild;
@@ -413,6 +421,11 @@ private R internalbuild() {
             return selectDSL.build();
         }
 
+        public QueryExpressionWhereBuilder where() {
+            joinModel = buildJoinModel();
+            return new QueryExpressionWhereBuilder();
+        }
+
         public <T> QueryExpressionWhereBuilder where(BindableColumn<T> column, VisitableCondition<T> condition) {
             joinModel = buildJoinModel();
             return new QueryExpressionWhereBuilder(column, condition);

src/main/java/org/mybatis/dynamic/sql/update/UpdateDSL.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2016-2018 the original author or authors.
+ *    Copyright 2016-2019 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -54,6 +54,10 @@ public <T> SetClauseFinisher<T> set(SqlColumn<T> column) {
         return new SetClauseFinisher<>(column);
     }
 
+    public UpdateWhereBuilder where() {
+        return new UpdateWhereBuilder();
+    }
+
     public <T> UpdateWhereBuilder where(BindableColumn<T> column, VisitableCondition<T> condition) {
         return new UpdateWhereBuilder(column, condition);
     }
@@ -145,6 +149,10 @@ public UpdateDSL<R> equalToWhenPresent(Supplier<T> valueSupplier) {
 
     public class UpdateWhereBuilder extends AbstractWhereDSL<UpdateWhereBuilder> {
 
+        public <T> UpdateWhereBuilder() {
+            super();
+        }
+
         public <T> UpdateWhereBuilder(BindableColumn<T> column, VisitableCondition<T> condition) {
             super(column, condition);
         }

src/main/java/org/mybatis/dynamic/sql/where/AbstractWhereDSL.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2016-2017 the original author or authors.
+ *    Copyright 2016-2019 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -26,6 +26,10 @@
 public abstract class AbstractWhereDSL<T extends AbstractWhereDSL<T>> {
     private List<SqlCriterion<?>> criteria = new ArrayList<>();
 
+    protected <S> AbstractWhereDSL() {
+        super();
+    }
+
     protected <S> AbstractWhereDSL(BindableColumn<S> column, VisitableCondition<S> condition) {
         SqlCriterion<S> criterion = SqlCriterion.withColumn(column)
                 .withCondition(condition)

src/main/java/org/mybatis/dynamic/sql/where/WhereDSL.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2016-2017 the original author or authors.
+ *    Copyright 2016-2019 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -21,6 +21,10 @@
 
 public class WhereDSL extends AbstractWhereDSL<WhereDSL> {
 
+    private WhereDSL() {
+        super();
+    }
+
     private <T> WhereDSL(BindableColumn<T> column, VisitableCondition<T> condition) {
         super(column, condition);
     }
@@ -34,6 +38,10 @@ protected WhereDSL getThis() {
         return this;
     }
 
+    public static WhereDSL where() {
+        return new WhereDSL();
+    }
+
     public static <T> WhereDSL where(BindableColumn<T> column, VisitableCondition<T> condition) {
         return new WhereDSL(column, condition);
     }