added JPAInsertClause

querydsl-jpa/src/main/java/com/querydsl/jpa/JPQLQueryFactory.java

@@ -16,6 +16,7 @@ package com.querydsl.jpa;
 import com.querydsl.core.QueryFactory;
 import com.querydsl.core.Tuple;
 import com.querydsl.core.dml.DeleteClause;
+import com.querydsl.core.dml.InsertClause;
 import com.querydsl.core.dml.UpdateClause;
 import com.querydsl.core.types.EntityPath;
 import com.querydsl.core.types.Expression;
@@ -117,4 +118,12 @@ public interface JPQLQueryFactory extends QueryFactory<JPQLQuery<?>> {
      */
     UpdateClause<?> update(EntityPath<?> path);
 
+    /**
+     * Create a new INSERT clause
+     *
+     * @param path entity to insert to
+     * @return insert clause
+     */
+    InsertClause<?> insert(EntityPath<?> path);
+
 }

querydsl-jpa/src/main/java/com/querydsl/jpa/JPQLSerializer.java

@@ -69,6 +69,8 @@ public class JPQLSerializer extends SerializerBase<JPQLSerializer> {
 
     private static final String UPDATE = "update ";
 
+    private static final String INSERT = "insert into ";
+
     private static final String WHERE = "\nwhere ";
 
     private static final String WITH = " with ";
@@ -258,6 +260,25 @@ public class JPQLSerializer extends SerializerBase<JPQLSerializer> {
         }
     }
 
+    public void serializeForInsert(QueryMetadata md, List<Path<?>> columns, SubQueryExpression<?> query) {
+        append(INSERT);
+        JoinExpression je = md.getJoins().get(0);
+        final EntityPath<?> pe = (EntityPath<?>) je.getTarget();
+        append(pe.toString());
+        //handleJoinTarget(je);
+        append(" (");
+        boolean first = true;
+        for (Path<?> path : columns) {
+            if (!first) {
+                append(", ");
+            }
+            handle(path);
+            first = false;
+        }
+        append(")\n");
+        serialize(query.getMetadata(), false, null);
+    }
+
     public void serializeForUpdate(QueryMetadata md, Map<Path<?>, Expression<?>> updates) {
         append(UPDATE);
         handleJoinTarget(md.getJoins().get(0));

querydsl-jpa/src/main/java/com/querydsl/jpa/hibernate/HibernateInsertClause.java

@@ -0,0 +1,163 @@
+/*
+ * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.querydsl.jpa.hibernate;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.hibernate.LockMode;
+import org.hibernate.Query;
+import org.hibernate.Session;
+import org.hibernate.StatelessSession;
+
+import com.google.common.collect.Maps;
+import com.querydsl.core.JoinType;
+import com.querydsl.core.dml.InsertClause;
+import com.querydsl.core.dml.UpdateClause;
+import com.querydsl.core.support.QueryMixin;
+import com.querydsl.core.types.EntityPath;
+import com.querydsl.core.types.Expression;
+import com.querydsl.core.types.Path;
+import com.querydsl.core.types.Predicate;
+import com.querydsl.core.types.SubQueryExpression;
+import com.querydsl.core.types.dsl.Expressions;
+import com.querydsl.jpa.HQLTemplates;
+import com.querydsl.jpa.JPAQueryMixin;
+import com.querydsl.jpa.JPQLSerializer;
+import com.querydsl.jpa.JPQLTemplates;
+import com.querydsl.jpa.impl.JPAInsertClause;
+
+/**
+ * UpdateClause implementation for Hibernate
+ *
+ * @author tiwe
+ *
+ */
+public class HibernateInsertClause implements
+        InsertClause<HibernateInsertClause> {
+
+    private final QueryMixin<?> queryMixin = new JPAQueryMixin<Void>();
+
+    private final List<Path<?>> columns = new ArrayList<Path<?>>();
+
+    private SubQueryExpression<?> subQuery;
+
+    private final SessionHolder session;
+
+    private final JPQLTemplates templates;
+
+    private final Map<Path<?>,LockMode> lockModes = new HashMap<Path<?>,LockMode>();
+
+    public HibernateInsertClause(Session session, EntityPath<?> entity) {
+        this(new DefaultSessionHolder(session), entity, HQLTemplates.DEFAULT);
+    }
+
+    public HibernateInsertClause(StatelessSession session, EntityPath<?> entity) {
+        this(new StatelessSessionHolder(session), entity, HQLTemplates.DEFAULT);
+    }
+
+    public HibernateInsertClause(Session session, EntityPath<?> entity, JPQLTemplates templates) {
+        this(new DefaultSessionHolder(session), entity, templates);
+    }
+
+    public HibernateInsertClause(SessionHolder session, EntityPath<?> entity,
+            JPQLTemplates templates) {
+        this.session = session;
+        this.templates = templates;
+        queryMixin.addJoin(JoinType.DEFAULT, entity);
+    }
+
+    @Override
+    public long execute() {
+        JPQLSerializer serializer = new JPQLSerializer(templates, null);
+        serializer.serializeForInsert(queryMixin.getMetadata(), columns, subQuery);
+        Map<Object, String> constants = serializer.getConstantToLabel();
+
+        Query query = session.createQuery(serializer.toString());
+        for (Map.Entry<Path<?>, LockMode> entry : lockModes.entrySet()) {
+            query.setLockMode(entry.getKey().toString(), entry.getValue());
+        }
+        HibernateUtil.setConstants(query, constants, queryMixin.getMetadata().getParams());
+        return query.executeUpdate();
+    }
+
+    @Override
+    public HibernateInsertClause columns(Path<?>... columns)
+    {
+        this.columns.addAll(Arrays.asList(columns));
+        return this;
+    }
+
+    @Override
+    public HibernateInsertClause select(SubQueryExpression<?> sq)
+    {
+        subQuery = sq;
+        return this;
+    }
+
+    /**
+     * Set the lock mode for the given path.
+     * @return the current object
+     */
+    @SuppressWarnings("unchecked")
+    public HibernateInsertClause setLockMode(Path<?> path, LockMode lockMode) {
+        lockModes.put(path, lockMode);
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        JPQLSerializer serializer = new JPQLSerializer(templates, null);
+        serializer.serializeForInsert(queryMixin.getMetadata(), columns, subQuery);
+        return serializer.toString();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return columns.isEmpty();
+    }
+
+    @Override
+    public <T> HibernateInsertClause set(Path<T> path, T value)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public <T> HibernateInsertClause set(Path<T> path, Expression<? extends T> expression)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public <T> HibernateInsertClause setNull(Path<T> path)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public HibernateInsertClause values(Object... v)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+
+}

querydsl-jpa/src/main/java/com/querydsl/jpa/hibernate/HibernateQueryFactory.java

@@ -114,6 +114,11 @@ public class HibernateQueryFactory implements JPQLQueryFactory {
     public HibernateUpdateClause update(EntityPath<?> path) {
         return new HibernateUpdateClause(session.get(), path, templates);
     }
+    
+    @Override
+    public HibernateInsertClause insert(EntityPath<?> path) {
+        return new HibernateInsertClause(session.get(), path, templates);
+    }
 
     @Override
     public HibernateQuery<?> query() {

querydsl-jpa/src/main/java/com/querydsl/jpa/impl/JPAInsertClause.java

@@ -0,0 +1,150 @@
+/*
+ * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.querydsl.jpa.impl;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+import javax.annotation.Nullable;
+import javax.persistence.EntityManager;
+import javax.persistence.LockModeType;
+import javax.persistence.Query;
+
+import com.google.common.collect.Maps;
+import com.querydsl.core.JoinType;
+import com.querydsl.core.dml.InsertClause;
+import com.querydsl.core.dml.UpdateClause;
+import com.querydsl.core.support.QueryMixin;
+import com.querydsl.core.types.EntityPath;
+import com.querydsl.core.types.Expression;
+import com.querydsl.core.types.ParamExpression;
+import com.querydsl.core.types.Path;
+import com.querydsl.core.types.Predicate;
+import com.querydsl.core.types.SubQueryExpression;
+import com.querydsl.core.types.dsl.Expressions;
+import com.querydsl.jpa.JPAQueryMixin;
+import com.querydsl.jpa.JPQLSerializer;
+import com.querydsl.jpa.JPQLTemplates;
+
+/**
+ * UpdateClause implementation for JPA
+ *
+ * @author tiwe
+ *
+ */
+public class JPAInsertClause implements InsertClause<JPAInsertClause> {
+
+    private final QueryMixin<?> queryMixin = new JPAQueryMixin<Void>();
+
+    private final List<Path<?>> columns = new ArrayList<Path<?>>();
+
+    private final List<Expression<?>> values = new ArrayList<Expression<?>>();
+
+    private final EntityManager entityManager;
+
+    private final JPQLTemplates templates;
+
+    private SubQueryExpression<?> subQuery;
+
+    @Nullable
+    private LockModeType lockMode;
+
+    public JPAInsertClause(EntityManager em, EntityPath<?> entity) {
+        this(em, entity, JPAProvider.getTemplates(em));
+    }
+
+    public JPAInsertClause(EntityManager em, EntityPath<?> entity, JPQLTemplates templates) {
+        this.entityManager = em;
+        this.templates = templates;
+        queryMixin.addJoin(JoinType.DEFAULT, entity);
+    }
+
+    @Override
+    public long execute() {
+        JPQLSerializer serializer = new JPQLSerializer(templates, entityManager);
+        serializer.serializeForInsert(queryMixin.getMetadata(), columns, subQuery);
+        Map<Object,String> constants = serializer.getConstantToLabel();
+
+        Query query = entityManager.createQuery(serializer.toString());
+        if (lockMode != null) {
+            query.setLockMode(lockMode);
+        }
+        JPAUtil.setConstants(query, constants, queryMixin.getMetadata().getParams());
+        return query.executeUpdate();
+    }
+
+    public JPAInsertClause setLockMode(LockModeType lockMode) {
+        this.lockMode = lockMode;
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        JPQLSerializer serializer = new JPQLSerializer(templates, entityManager);
+        serializer.serializeForInsert(queryMixin.getMetadata(), columns, subQuery);
+        return serializer.toString();
+    }
+
+    @Override
+    public JPAInsertClause columns(Path<?>... columns)
+    {
+        this.columns.addAll(Arrays.asList(columns));
+        return this;
+    }
+
+    @Override
+    public JPAInsertClause select(SubQueryExpression<?> sq)
+    {
+        subQuery = sq;
+        return this;
+    }
+
+    @Override
+    public JPAInsertClause values(Object... v)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public boolean isEmpty()
+    {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public <T> JPAInsertClause set(Path<T> path, T value)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public <T> JPAInsertClause set(Path<T> path, Expression<? extends T> expression)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public <T> JPAInsertClause setNull(Path<T> path)
+    {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}

querydsl-jpa/src/main/java/com/querydsl/jpa/impl/JPAQueryFactory.java

@@ -130,6 +130,15 @@ public class JPAQueryFactory implements JPQLQueryFactory  {
         }
     }
 
+    @Override
+    public JPAInsertClause insert(EntityPath<?> path) {
+        if (templates != null) {
+            return new JPAInsertClause(entityManager.get(), path, templates);
+        } else {
+            return new JPAInsertClause(entityManager.get(), path);
+        }
+    }
+
     @Override
     public JPAQuery<?> query() {
         if (templates != null) {

querydsl-jpa/src/test/java/com/querydsl/jpa/JPAQueryFactoryTest.java

@@ -29,6 +29,7 @@ import org.junit.Test;
 import com.google.common.collect.Maps;
 import com.querydsl.jpa.domain.QAnimal;
 import com.querydsl.jpa.impl.JPAQueryFactory;
+import com.querydsl.sql.SQLExpressions;
 
 public class JPAQueryFactoryTest {
 
@@ -135,4 +136,33 @@ public class JPAQueryFactoryTest {
         EasyMock.verify(mock, factoryMock);
     }
 
+    @Test
+    public void insert() {
+        assertNotNull(queryFactory.insert(QAnimal.animal));
+    }
+
+    @Test
+    public void insert2() {
+        queryFactory2.insert(QAnimal.animal)
+        .set(QAnimal.animal.birthdate, new Date());
+    }
+
+    @Test
+    public void insert3() {
+        EasyMock.expect(mock.getEntityManagerFactory()).andReturn(factoryMock);
+        EasyMock.expect(factoryMock.getProperties()).andReturn(properties);
+        EasyMock.expect(mock.getDelegate()).andReturn(mock).atLeastOnce();
+        EasyMock.replay(mock, factoryMock);
+
+        assertNotNull(queryFactory3.insert(QAnimal.animal));
+
+        EasyMock.verify(mock, factoryMock);
+    }
+
+    @Test
+    public void insert4() {
+        queryFactory.insert(QAnimal.animal).columns(QAnimal.animal.id, QAnimal.animal.birthdate)
+        .select(SQLExpressions.select(QAnimal.animal.id, QAnimal.animal.birthdate).from(QAnimal.animal));
+    }
+
 }