moving tax id and vat id into tradeparty

library/src/main/java/org/mustangproject/Invoice.java

@@ -28,7 +28,7 @@ import java.util.Date;
 
 public class Invoice implements IExportableTransaction {
 
-	protected String documentName = null, documentCode = null, number = null, ownOrganisationFullPlaintextInfo = null, referenceNumber = null, shipToOrganisationID = null, shipToOrganisationName = null, shipToStreet = null, shipToZIP = null, shipToLocation = null, shipToCountry = null, buyerOrderReferencedDocumentID = null, buyerOrderReferencedDocumentIssueDateTime = null, ownTaxID = null, ownVATID = null, ownForeignOrganisationID = null, ownOrganisationName = null, currency = null, paymentTermDescription = null;
+	protected String documentName = null, documentCode = null, number = null, ownOrganisationFullPlaintextInfo = null, referenceNumber = null, shipToOrganisationID = null, shipToOrganisationName = null, shipToStreet = null, shipToZIP = null, shipToLocation = null, shipToCountry = null, buyerOrderReferencedDocumentID = null, buyerOrderReferencedDocumentIssueDateTime = null, ownForeignOrganisationID = null, ownOrganisationName = null, currency = null, paymentTermDescription = null;
 	protected Date issueDate = null, dueDate = null, deliveryDate = null;
 	protected BigDecimal totalPrepaidAmount = null;
 	protected TradeParty sender=null, recipient = null, deliveryAddress = null;
@@ -81,6 +81,16 @@ public class Invoice implements IExportableTransaction {
 		return this;
 	}
 
+	/***
+	 * switch type to invoice correction and refer to document number
+	 * @param number
+	 * @return
+	 */
+	public Invoice setCorrection(String number) {
+
+		return this;
+	}
+
 	@Override
 	public String getOwnOrganisationFullPlaintextInfo() {
 		return ownOrganisationFullPlaintextInfo;
@@ -183,21 +193,21 @@ public class Invoice implements IExportableTransaction {
 
 	@Override
 	public String getOwnTaxID() {
-		return ownTaxID;
+		return getSender().getTaxID();
 	}
 
 	public Invoice setOwnTaxID(String ownTaxID) {
-		this.ownTaxID = ownTaxID;
+		sender.addTaxID(ownTaxID);
 		return this;
 	}
 
 	@Override
 	public String getOwnVATID() {
-		return ownVATID;
+		return getSender().getVATID();
 	}
 
 	public Invoice setOwnVATID(String ownVATID) {
-		this.ownVATID = ownVATID;
+		sender.addVATID(ownVATID);
 		return this;
 	}
 
@@ -401,7 +411,7 @@ public class Invoice implements IExportableTransaction {
 	 * @return
 	 */
 	public boolean isValid() {
-		return (dueDate != null) && (sender != null) && (ownTaxID != null) && (ownVATID != null) && (recipient != null);
+		return (dueDate != null) && (sender != null) && (sender.getTaxID() != null) && (sender.getVATID() != null) && (recipient != null);
 		//contact
 		//		this.phone = phone;
 		//		this.email = email;

library/src/main/java/org/mustangproject/InvoiceCorrection.java

@@ -1,31 +0,0 @@
-/**
- * *********************************************************************
- * <p>
- * Copyright 2018 Jochen Staerk
- * <p>
- * Use is subject to license terms.
- * <p>
- * 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.
- * <p>
- * 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.
- * <p>
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * <p>
- * **********************************************************************
- */
-package org.mustangproject;
-
-import org.mustangproject.ZUGFeRD.*;
-
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Date;
-
-public class InvoiceCorrection extends Invoice {
-
-}

library/src/main/java/org/mustangproject/TradeParty.java

@@ -6,6 +6,7 @@ import org.mustangproject.ZUGFeRD.IZUGFeRDExportableTradeParty;
 public class TradeParty implements IZUGFeRDExportableTradeParty {
 
 	protected String name,zip,street,location,country;
+	protected String taxID=null, vatID=null;
 	protected Contact contact=null;
 
 	public TradeParty(String name, String street, String zip, String location, String country) {
@@ -22,6 +23,26 @@ public class TradeParty implements IZUGFeRDExportableTradeParty {
 		return this;
 	}
 
+	public TradeParty addTaxID(String taxID) {
+		this.taxID=taxID;
+		return this;
+	}
+
+	public TradeParty addVATID(String vatID) {
+		this.vatID=vatID;
+		return this;
+	}
+
+	@Override
+	public String getVATID() {
+		return vatID;
+	}
+
+	@Override
+	public String getTaxID() {
+		return taxID;
+	}
+
 	public String getName() {
 		return name;
 	}

library/src/main/java/org/mustangproject/ZUGFeRD/IExportableTransaction.java

@@ -165,7 +165,11 @@ public interface IExportableTransaction {
 	 * @return Tax ID (not VAT ID) of the sender
 	 */
 	default String getOwnTaxID() {
-		return null;
+		if (getSender()!=null) {
+			return getSender().getTaxID();
+		} else {
+			return null;
+		}
 	}
 
 
@@ -175,7 +179,11 @@ public interface IExportableTransaction {
 	 * @return VAT ID (Umsatzsteueridentifikationsnummer) of the sender
 	 */
 	default String getOwnVATID() {
-		return null;
+		if (getSender()!=null) {
+			return getSender().getVATID();
+		} else {
+			return null;
+		}
 	}
 
 

library/src/main/java/org/mustangproject/ZUGFeRD/IZUGFeRDExportableTradeParty.java

@@ -18,12 +18,14 @@
  *********************************************************************** */
 package org.mustangproject.ZUGFeRD;
 
+import org.mustangproject.TradeParty;
+
 /**
  * Mustangproject's ZUGFeRD implementation neccessary interface for ZUGFeRD exporter Licensed under the APLv2
  *
  * @author jstaerk
- * @version 1.2.0
- * dated 2014-05-10
+ * @version 2.0.0
+ * dated 2020-09-12
  */
 
 
@@ -127,4 +129,14 @@ public interface IZUGFeRDExportableTradeParty {
 		return null;
 	}
 
+
+	/***
+	 * obligatory for sender but not for recipient
+	 * @return
+	 */
+	default String getTaxID() {
+		return null;
+	}
+
+
 }