Added more indexing/delete/query examples to code (#1251)

* Solr w Apache SolrJ

* Solr w Apache SolrJ

* updated test names and moved add to @before method

* create apache-solrj module, moved code from spring-data-solr

* More examples for indexing,delete,and query for solrj

* More examples for indexing,delete,and query for solrj

apache-solrj/src/main/java/com/baeldung/solrjava/ProductBean.java

@@ -0,0 +1,44 @@
+package com.baeldung.solrjava;
+
+import org.apache.solr.client.solrj.beans.Field;
+
+public class ProductBean {
+
+    String id;
+    String name;
+    String price;
+
+    public ProductBean(String id, String name, String price) {
+        super();
+        this.id = id;
+        this.name = name;
+        this.price = price;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    @Field("id")
+    protected void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    @Field("name")
+    protected void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPrice() {
+        return price;
+    }
+
+    @Field("price")
+    protected void setPrice(String price) {
+        this.price = price;
+    }
+}

apache-solrj/src/main/java/com/baeldung/solrjava/SolrJavaIntegration.java

@@ -17,6 +17,12 @@ public class SolrJavaIntegration {
         solrClient.setParser(new XMLResponseParser());
     }
 
+    public void addProductBean(ProductBean pBean) throws IOException, SolrServerException {
+
+        solrClient.addBean(pBean);
+        solrClient.commit();
+    }
+
     public void addSolrDocument(String documentId, String itemName, String itemPrice) throws SolrServerException, IOException {
 
         SolrInputDocument document = new SolrInputDocument();
@@ -27,12 +33,18 @@ public class SolrJavaIntegration {
         solrClient.commit();
     }
 
-    public void deleteSolrDocument(String documentId) throws SolrServerException, IOException {
+    public void deleteSolrDocumentById(String documentId) throws SolrServerException, IOException {
 
         solrClient.deleteById(documentId);
         solrClient.commit();
     }
 
+    public void deleteSolrDocumentByQuery(String query) throws SolrServerException, IOException {
+
+        solrClient.deleteByQuery(query);
+        solrClient.commit();
+    }
+
     protected HttpSolrClient getSolrClient() {
         return solrClient;
     }
@@ -40,4 +52,5 @@ public class SolrJavaIntegration {
     protected void setSolrClient(HttpSolrClient solrClient) {
         this.solrClient = solrClient;
     }
+
 }