diff options
Diffstat (limited to 'src/main/java/com/iciql/SQLDialectSQLite.java')
-rw-r--r-- | src/main/java/com/iciql/SQLDialectSQLite.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/com/iciql/SQLDialectSQLite.java b/src/main/java/com/iciql/SQLDialectSQLite.java new file mode 100644 index 0000000..c9bf8ec --- /dev/null +++ b/src/main/java/com/iciql/SQLDialectSQLite.java @@ -0,0 +1,115 @@ +/*
+ * Copyright 2014 James Moger.
+ *
+ * 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
+ *
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.iciql;
+
+import com.iciql.TableDefinition.FieldDefinition;
+import com.iciql.TableDefinition.IndexDefinition;
+import com.iciql.util.IciqlLogger;
+import com.iciql.util.StatementBuilder;
+
+
+/**
+ * SQLite database dialect.
+ */
+public class SQLDialectSQLite extends SQLDialectDefault {
+
+ @Override
+ public boolean supportsSavePoints() {
+ return false;
+ }
+
+ @Override
+ public void configureDialect(Db db) {
+ super.configureDialect(db);
+ // enable foreign key constraint enforcement
+ db.executeUpdate("PRAGMA foreign_keys = ON;");
+ }
+
+ @Override
+ protected <T> String prepareCreateTable(TableDefinition<T> def) {
+ return "CREATE TABLE IF NOT EXISTS";
+ }
+
+ @Override
+ protected <T> String prepareCreateView(TableDefinition<T> def) {
+ return "CREATE VIEW IF NOT EXISTS";
+ }
+
+ @Override
+ public <T> void prepareDropView(SQLStatement stat, TableDefinition<T> def) {
+ StatementBuilder buff = new StatementBuilder("DROP VIEW IF EXISTS "
+ + prepareTableName(def.schemaName, def.tableName));
+ stat.setSQL(buff.toString());
+ return;
+ }
+
+ @Override
+ public void prepareCreateIndex(SQLStatement stat, String schemaName, String tableName,
+ IndexDefinition index) {
+ StatementBuilder buff = new StatementBuilder();
+ buff.append("CREATE ");
+ switch (index.type) {
+ case UNIQUE:
+ buff.append("UNIQUE ");
+ break;
+ case UNIQUE_HASH:
+ buff.append("UNIQUE ");
+ break;
+ default:
+ IciqlLogger.warn("{0} does not support hash indexes", getClass().getSimpleName());
+ }
+ buff.append("INDEX IF NOT EXISTS ");
+ buff.append(index.indexName);
+ buff.append(" ON ");
+ // FIXME maybe we can use schemaName ?
+ // buff.append(prepareTableName(schemaName, tableName));
+ buff.append(tableName);
+ buff.append("(");
+ for (String col : index.columnNames) {
+ buff.appendExceptFirst(", ");
+ buff.append(prepareColumnName(col));
+ }
+ buff.append(") ");
+
+ stat.setSQL(buff.toString().trim());
+ }
+
+ @Override
+ public <T> void prepareMerge(SQLStatement stat, String schemaName, String tableName,
+ TableDefinition<T> def, Object obj) {
+ StatementBuilder buff = new StatementBuilder("INSERT OR REPLACE INTO ");
+ buff.append(prepareTableName(schemaName, tableName)).append(" (");
+ buff.resetCount();
+ for (FieldDefinition field : def.fields) {
+ buff.appendExceptFirst(", ");
+ buff.append(field.columnName);
+ }
+ buff.append(") ");
+ buff.resetCount();
+ buff.append("VALUES (");
+ for (FieldDefinition field : def.fields) {
+ buff.appendExceptFirst(", ");
+ buff.append('?');
+ Object value = def.getValue(obj, field);
+ Object parameter = serialize(value, field.typeAdapter);
+ stat.addParameter(parameter);
+ }
+ buff.append(')');
+ stat.setSQL(buff.toString());
+ }
+
+}
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