Collect the DB schemas in the model via MTable

src/main/java/io/ebeaninternal/dbmigration/model/MTable.java

@@ -1,7 +1,6 @@
 package io.ebeaninternal.dbmigration.model;
 
 import io.ebeaninternal.dbmigration.ddlgeneration.platform.DdlHelp;
-import io.ebeaninternal.dbmigration.ddlgeneration.platform.SplitColumns;
 import io.ebeaninternal.dbmigration.migration.AddColumn;
 import io.ebeaninternal.dbmigration.migration.AddHistoryTable;
 import io.ebeaninternal.dbmigration.migration.AddTableComment;
@@ -34,15 +33,12 @@ import static io.ebeaninternal.dbmigration.ddlgeneration.platform.SplitColumns.s
  * <p>
  * This effectively represents a table, its columns and all associated
  * constraints, foreign keys and indexes.
- * </p>
  * <p>
  * Migrations can be applied to this such that it represents the state
  * of a given table after various migrations have been applied.
- * </p>
  * <p>
  * This table model can also be derived from the EbeanServer bean descriptor
  * and associated properties.
- * </p>
  */
 public class MTable {
 
@@ -420,6 +416,11 @@ public class MTable {
     return name;
   }
 
+  public String getSchema() {
+    int pos = name.indexOf('.');
+    return pos == -1 ? null : name.substring(0, pos);
+  }
+
   /**
    * Return true if this table is a 'Draft' table.
    */

src/main/java/io/ebeaninternal/dbmigration/model/ModelContainer.java

@@ -24,6 +24,8 @@ import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
 
 /**
  * Holds all the tables, views, indexes etc that represent the model.
@@ -33,6 +35,8 @@ import java.util.Map;
  */
 public class ModelContainer {
 
+  private final Set<String> schemas = new TreeSet<>();
+
   /**
    * All the tables in the model.
    */
@@ -50,6 +54,13 @@ public class ModelContainer {
   public ModelContainer() {
   }
 
+  /**
+   * Return the schemas.
+   */
+  public Set<String> getSchemas() {
+    return schemas;
+  }
+
   /**
    * Return true if the model contains tables that are partitioned.
    */
@@ -310,6 +321,10 @@ public class ModelContainer {
     if (table.isPartitioned()) {
       partitionedTables.add(table);
     }
+    String schema = table.getSchema();
+    if (schema != null) {
+      schemas.add(schema);
+    }
     return tables.put(table.getName(), table);
   }