feat: added Interface for ProjectDescription

gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IProjectDescription.java

+package unipotsdam.gf.interfaces;
+
+import java.util.ArrayList;
+
+/**
+ * Interface for Project Description
+ */
+public interface IProjectDescription {
+
+    /**
+     * Save description to database
+     * @param description
+     */
+    void saveDescription(String description);
+
+    /**
+     * Add a new link to ProjectDescription
+     * @param link url of the link
+     * @param name name to shoe on website
+     */
+    void addLink(String link, String name);
+
+    /**
+     * Delete link
+     * @param name name of the link
+     */
+    void deleteLink(String name);
+
+    /**
+     * Get name of the project
+     * @param projectId Id of the project
+     * @return name of the project
+     */
+
+    String getName(long projectId);
+
+    /**
+     * Get Description of the project
+     * @param projectId Id of the project
+     * @return Desription of the project
+     */
+    String getDescription(long projectId);
+
+    /**
+     * Get Lecturer of the project
+     * @param projectId Id of the project
+     * @return Lecturer of the project
+     */
+    long getLecturer(long projectId);
+
+    /**
+     * Get all Students of the project (Group)
+     * @param projectId Id of the Project
+     * @return Students of the project
+     */
+    ArrayList<Long> getStudents(long projectId);
+
+    /**
+     * Get all Links of the project
+     * @param projectId Id of the Project
+     * @return all links of the project
+     */
+    ArrayList<Long> getLinks(long projectId);
+
+
+
+}