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MySqlTriggerTemplate.java
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MySqlTriggerTemplate.java
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/**
* Licensed to JumpMind Inc under one or more contributor
* license agreements. See the NOTICE file distributed
* with this work for additional information regarding
* copyright ownership. JumpMind Inc licenses this file
* to you under the GNU General Public License, version 3.0 (GPLv3)
* (the "License"); you may not use this file except in compliance
* with the License.
*
* You should have received a copy of the GNU General Public License,
* version 3.0 (GPLv3) along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*
* 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 org.jumpmind.symmetric.db.mysql;
import java.util.HashMap;
import org.jumpmind.symmetric.db.AbstractTriggerTemplate;
import org.jumpmind.symmetric.db.ISymmetricDialect;
import org.jumpmind.symmetric.util.SymmetricUtils;
public class MySqlTriggerTemplate extends AbstractTriggerTemplate {
public MySqlTriggerTemplate(ISymmetricDialect symmetricDialect, boolean isConvertZeroDateToNull, String characterSet) {
super(symmetricDialect);
emptyColumnTemplate = "''" ;
stringColumnTemplate = "cast(if($(tableAlias).`$(columnName)` is null,'',concat('\"',replace(replace($(tableAlias).`$(columnName)`,'\\\\','\\\\\\\\'),'\"','\\\\\"'),'\"')) as char)\n" ;
geometryColumnTemplate = "if($(tableAlias).`$(columnName)` is null,'',concat('\"',replace(replace(astext($(tableAlias).`$(columnName)`),'\\\\','\\\\\\\\'),'\"','\\\\\"'),'\"'))\n" ;
numberColumnTemplate = "if($(tableAlias).`$(columnName)` is null,'',concat('\"',cast($(tableAlias).`$(columnName)` as char),'\"'))\n" ;
datetimeColumnTemplate = "if($(tableAlias).`$(columnName)` is null" + (isConvertZeroDateToNull ? " or $(tableAlias).`$(columnName)` = '0000-00-00'" : "") + ",'',concat('\"',cast($(tableAlias).`$(columnName)` as char),'\"'))\n" ;
clobColumnTemplate = stringColumnTemplate;
blobColumnTemplate = "if($(tableAlias).`$(columnName)` is null,'',concat('\"',hex($(tableAlias).`$(columnName)`),'\"'))\n" ;
booleanColumnTemplate = "if($(tableAlias).`$(columnName)` is null,'',concat('\"',cast($(tableAlias).`$(columnName)` as unsigned),'\"'))\n" ;
triggerConcatCharacter = "," ;
newTriggerValue = "new" ;
oldTriggerValue = "old" ;
oldColumnPrefix = "" ;
newColumnPrefix = "" ;
sqlTemplates = new HashMap<String,String>();
sqlTemplates.put("insertTriggerTemplate" ,
"create trigger $(triggerName) after insert on $(schemaName)$(tableName) \n" +
" for each row begin \n" +
" $(custom_before_insert_text) \n" +
" if $(syncOnInsertCondition) and $(syncOnIncomingBatchCondition) then \n" +
" insert into $(defaultCatalog)$(prefixName)_data (table_name, event_type, trigger_hist_id, row_data, channel_id, transaction_id, source_node_id, external_data, create_time)\n" +
" values( \n" +
" '$(targetTableName)', \n" +
" 'I', \n" +
" $(triggerHistoryId), \n" +
" concat($(columns) \n" +
" ), \n" +
" $(channelExpression), $(txIdExpression), @sync_node_disabled, \n" +
" $(externalSelect), \n" +
" CURRENT_TIMESTAMP \n" +
" ); \n" +
" end if; \n" +
" $(custom_on_insert_text) \n" +
" end " );
sqlTemplates.put("insertReloadTriggerTemplate" ,
"create trigger $(triggerName) after insert on $(schemaName)$(tableName) \n" +
" for each row begin \n" +
" $(custom_before_insert_text) \n" +
" if $(syncOnInsertCondition) and $(syncOnIncomingBatchCondition) then \n" +
" insert into $(defaultCatalog)$(prefixName)_data (table_name, event_type, trigger_hist_id, pk_data, channel_id, transaction_id, source_node_id, external_data, create_time)\n" +
" values( \n" +
" '$(targetTableName)', \n" +
" 'R', \n" +
" $(triggerHistoryId), \n" +
" concat($(newKeys)), \n" +
" $(channelExpression), $(txIdExpression), @sync_node_disabled, \n" +
" $(externalSelect), \n" +
" CURRENT_TIMESTAMP \n" +
" ); \n" +
" end if; \n" +
" $(custom_on_insert_text) \n" +
" end " );
sqlTemplates.put("updateTriggerTemplate" ,
"create trigger $(triggerName) after update on $(schemaName)$(tableName) \n" +
" for each row begin \n" +
" DECLARE var_row_data mediumtext character set " + characterSet + ";\n" +
" DECLARE var_old_data mediumtext character set " + characterSet + ";\n" +
" $(custom_before_update_text) \n" +
" if $(syncOnUpdateCondition) and $(syncOnIncomingBatchCondition) then \n" +
" set var_row_data = concat($(columns)); \n" +
" set var_old_data = concat($(oldColumns)); \n" +
" if $(dataHasChangedCondition) then \n" +
" insert into $(defaultCatalog)$(prefixName)_data (table_name, event_type, trigger_hist_id, pk_data, row_data, old_data, channel_id, transaction_id, source_node_id, external_data, create_time)\n" +
" values( \n" +
" '$(targetTableName)', \n" +
" 'U', \n" +
" $(triggerHistoryId), \n" +
" concat($(oldKeys) \n" +
" ), \n" +
" var_row_data, \n" +
" var_old_data, \n" +
" $(channelExpression), $(txIdExpression), @sync_node_disabled, \n" +
" $(externalSelect), \n" +
" CURRENT_TIMESTAMP \n" +
" ); \n" +
" end if; \n" +
" end if; \n" +
" $(custom_on_update_text) \n" +
" end " );
sqlTemplates.put("updateReloadTriggerTemplate" ,
"create trigger $(triggerName) after update on $(schemaName)$(tableName) \n" +
" for each row begin \n" +
" $(custom_before_update_text) \n" +
" if $(syncOnUpdateCondition) and $(syncOnIncomingBatchCondition) then \n" +
" if $(dataHasChangedCondition) then \n" +
" insert into $(defaultCatalog)$(prefixName)_data (table_name, event_type, trigger_hist_id, pk_data, channel_id, transaction_id, source_node_id, external_data, create_time)\n" +
" values( \n" +
" '$(targetTableName)', \n" +
" 'R', \n" +
" $(triggerHistoryId), \n" +
" concat($(oldKeys) \n" +
" ), \n" +
" $(channelExpression), $(txIdExpression), @sync_node_disabled, \n" +
" $(externalSelect), \n" +
" CURRENT_TIMESTAMP \n" +
" ); \n" +
" end if; \n" +
" end if; \n" +
" $(custom_on_update_text) \n" +
" end " );
sqlTemplates.put("deleteTriggerTemplate" ,
"create trigger $(triggerName) after delete on $(schemaName)$(tableName) \n" +
" for each row begin \n" +
" $(custom_before_delete_text) \n" +
" if $(syncOnDeleteCondition) and $(syncOnIncomingBatchCondition) then \n" +
" insert into $(defaultCatalog)$(prefixName)_data (table_name, event_type, trigger_hist_id, pk_data, old_data, channel_id, transaction_id, source_node_id, external_data, create_time)\n" +
" values( \n" +
" '$(targetTableName)', \n" +
" 'D', \n" +
" $(triggerHistoryId), \n" +
" concat($(oldKeys) \n" +
" ), \n" +
" concat($(oldColumns) \n" +
" ), \n" +
" $(channelExpression), $(txIdExpression), @sync_node_disabled, \n" +
" $(externalSelect), \n" +
" CURRENT_TIMESTAMP \n" +
" ); \n" +
" end if; \n" +
" $(custom_on_delete_text) \n" +
" end " );
sqlTemplates.put("initialLoadSqlTemplate" ,
"select concat($(columns)) from $(schemaName)$(tableName) t where $(whereClause) " );
}
@Override
protected String castDatetimeColumnToString(String columnName) {
return "cast(\n" + SymmetricUtils.quote(symmetricDialect, columnName) + " as char) as \n" + columnName;
}
}