Implementation of DDLUTILS-177: Table does not have a getRequiredColumns method
git-svn-id: https://svn.apache.org/repos/asf/db/ddlutils/trunk@634935 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/java/org/apache/ddlutils/model/Table.java b/src/java/org/apache/ddlutils/model/Table.java
index f589a7d..447696b 100644
--- a/src/java/org/apache/ddlutils/model/Table.java
+++ b/src/java/org/apache/ddlutils/model/Table.java
@@ -744,10 +744,10 @@
}
/**
- * Returns the auto increment columns in this table. If no incrementcolumns
- * are found, it will return an empty array.
+ * Returns the auto increment columns in this table. If none are found,
+ * then an empty array will be returned.
*
- * @return The columns
+ * @return The auto increment columns
*/
public Column[] getAutoIncrementColumns()
{
@@ -761,6 +761,23 @@
}
/**
+ * Returns the required (not-nullable) columns in this table. If none are found,
+ * then an empty array will be returned.
+ *
+ * @return The required columns
+ */
+ public Column[] getRequiredColumns()
+ {
+ Collection requiredColumns = CollectionUtils.select(_columns, new Predicate() {
+ public boolean evaluate(Object input) {
+ return ((Column)input).isRequired();
+ }
+ });
+
+ return (Column[])requiredColumns.toArray(new Column[requiredColumns.size()]);
+ }
+
+ /**
* Sorts the foreign keys alphabetically.
*
* @param caseSensitive Whether case matters
