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/*
* Copyright 2008 biaoping.yin
*
* 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.frameworkset.orm.platform;
/*
*
* 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.
*/
import com.frameworkset.orm.engine.model.Domain;
import com.frameworkset.orm.engine.model.SchemaType;
/**
* Interface for RDBMS platform specific behaviour.
*
* @author Martin Poeschl
* @version $Id: Platform.java,v 1.8 2004/02/22 06:27:19 jmcnally Exp $
*/
public interface Platform
{
/** constant for native id method */
static final String IDENTITY = "identity";
/** constant for native id method */
static final String SEQUENCE = "sequence";
/**
* Returns the native IdMethod (sequence|identity)
*
* @return the native IdMethod
*/
String getNativeIdMethod();
/**
* Returns the max column length supported by the db.
*
* @return the max column length
*/
int getMaxColumnNameLength();
/**
* Returns the db specific domain for a jdbcType.
*
* @param jdbcType the jdbcType name
* @return the db specific domain
*/
Domain getDomainForSchemaType(SchemaType jdbcType);
/**
* Returns the db specific domain for a jdbcType.
*
* @param jdbcType the jdbcType name
* @return the db specific domain
*/
Domain getDomainForSchemaType(int jdbcType,String datatypeName);
/**
* @return The RDBMS-specific SQL fragment for NULL
* or NOT NULL
.
*/
String getNullString(boolean notNull);
/**
* @return The RDBMS-specific SQL fragment for autoincrement.
*/
String getAutoIncrement();
/**
* Returns if the RDBMS-specific SQL type has a size attribute.
*
* @param sqlType the SQL type
* @return true if the type has a size attribute
*/
boolean hasSize(String sqlType);
/**
* Returns if the RDBMS-specific SQL type has a size attribute.
*
* @param sqlType the SQL type
* @return true if the type has a size attribute
*/
boolean hasSize(int sqlType);
/**
* Returns if the RDBMS-specific SQL type has a scale attribute.
*
* @param sqlType the SQL type
* @return true if the type has a scale attribute
*/
boolean hasScale(String sqlType);
/**
* Returns if the RDBMS-specific SQL type has a scale attribute.
*
* @param sqlType the SQL type
* @return true if the type has a scale attribute
*/
boolean hasScale(int sqlType);
String getDBTYPE();
public SchemaType getSchemaTypeFromSqlType(int sqltype,String typeName);
}
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