Add SQLWhereIn and LevenshteinDistance algorithm

src/main/java/fr/pandacube/util/orm/SQLWhereIn.java

@@ -0,0 +1,34 @@
+package fr.pandacube.util.orm;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.javatuples.Pair;
+
+public class SQLWhereIn extends SQLWhere {
+
+	private SQLField<?, ?> field;
+	private Collection<?> values;
+
+	public <T> SQLWhereIn(SQLField<?, T> f, Collection<T> v) {
+		if (f == null || v == null)
+			throw new IllegalArgumentException("All arguments for SQLWhereIn constructor can't be null");
+		field = f;
+		values = v;
+	}
+
+	@Override
+	public Pair<String, List<Object>> toSQL() throws ORMException {
+		List<Object> params = new ArrayList<>();
+		for (Object v : values)
+			SQLElement.addValueToSQLObjectList(params, field, v);
+		
+		char[] questions = new char[values.size() == 0 ? 0 : (values.size() * 2 - 1)];
+		for (int i = 0; i < questions.length; i++)
+			questions[i] = i % 2 == 0 ? '?' : ',';
+		
+		return new Pair<>("`" + field.getName() + "` IN (" + new String(questions) + ") ", params);
+	}
+
+}