| // Copyright 2008 Google Inc. |
| // |
| // 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.google.gwtorm.schema.sql; |
| |
| import com.google.gwtorm.schema.ColumnModel; |
| import com.google.gwtorm.server.CodeGenSupport; |
| import java.sql.PreparedStatement; |
| import org.objectweb.asm.Opcodes; |
| import org.objectweb.asm.Type; |
| |
| public abstract class SqlTypeInfo { |
| protected SqlTypeInfo() {} |
| |
| public abstract String getSqlType(ColumnModel column, SqlDialect dialect); |
| |
| public String getCheckConstraint(final ColumnModel column, final SqlDialect dialect) { |
| return null; |
| } |
| |
| protected abstract String getJavaSqlTypeAlias(); |
| |
| protected abstract int getSqlTypeConstant(); |
| |
| public void generatePreparedStatementSet(final CodeGenSupport cgs) { |
| cgs.pushSqlHandle(); |
| cgs.pushColumnIndex(); |
| cgs.pushFieldValue(); |
| cgs.invokePreparedStatementSet(getJavaSqlTypeAlias()); |
| } |
| |
| public void generatePreparedStatementNull(final CodeGenSupport cgs) { |
| cgs.pushSqlHandle(); |
| cgs.pushColumnIndex(); |
| cgs.push(getSqlTypeConstant()); |
| cgs.mv.visitMethodInsn( |
| Opcodes.INVOKEINTERFACE, |
| Type.getInternalName(PreparedStatement.class), |
| "setNull", |
| Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {Type.INT_TYPE, Type.INT_TYPE})); |
| } |
| |
| public void generateResultSetGet(final CodeGenSupport cgs) { |
| cgs.fieldSetBegin(); |
| cgs.pushSqlHandle(); |
| cgs.pushColumnIndex(); |
| cgs.invokeResultSetGet(getJavaSqlTypeAlias()); |
| cgs.fieldSetEnd(); |
| } |
| } |