org.flowable.common.engine.impl.db

Class AbstractSqlScriptBasedDbSchemaManager

java.lang.Object

org.flowable.common.engine.impl.db.AbstractSqlScriptBasedDbSchemaManager

All Implemented Interfaces:

SchemaManager

Direct Known Subclasses:

ServiceSqlScriptBasedDbSchemaManager

public abstract class AbstractSqlScriptBasedDbSchemaManager
extends Object
implements SchemaManager

Author:

Joram Barrez

Field Summary

Fields

Modifier and Type	Field and Description
static String[]	JDBC_METADATA_TABLE_TYPES
protected org.slf4j.Logger	logger
protected static String	PROPERTY_TABLE
protected static String	SCHEMA_VERSION_PROPERTY

Constructor Summary

Constructors

Constructor and Description
AbstractSqlScriptBasedDbSchemaManager()

Method Summary

Modifier and Type	Method and Description
protected String	addSqlStatementPiece(String sqlStatement, String line)
protected void	dbSchemaUpgrade(String component, int currentDatabaseVersionsIndex)
protected void	dbSchemaUpgradeUntil6120(String component, int currentDatabaseVersionsIndex)
void	executeMandatorySchemaResource(String operation, String component)
void	executeSchemaResource(String operation, String component, String resourceName, boolean isOptional)
protected void	executeSchemaResource(String operation, String component, String resourceName, InputStream inputStream)
DbSqlSession	getDbSqlSession()
String	getProperty(String propertyName)
protected String	getPropertyTable()
String	getResourceForDbOperation(String directory, String operation, String component, String databaseType)
protected abstract String	getResourcesRootDirectory()
boolean	isTablePresent(String tableName)
protected String	prependDatabaseTablePrefix(String tableName)
protected String	readNextTrimmedLine(BufferedReader reader)
protected String	updateDdlForMySqlVersionLowerThan56(String ddlStatements) MySQL is funny when it comes to timestamps and dates.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.flowable.common.engine.impl.db.SchemaManager

schemaCheckVersion, schemaCreate, schemaDrop, schemaUpdate

Field Detail

logger

protected final org.slf4j.Logger logger

JDBC_METADATA_TABLE_TYPES

public static String[] JDBC_METADATA_TABLE_TYPES

PROPERTY_TABLE

protected static final String PROPERTY_TABLE

See Also:

Constant Field Values

SCHEMA_VERSION_PROPERTY

protected static final String SCHEMA_VERSION_PROPERTY

See Also:

Constant Field Values

Constructor Detail

AbstractSqlScriptBasedDbSchemaManager

public AbstractSqlScriptBasedDbSchemaManager()

Method Detail

dbSchemaUpgradeUntil6120

protected void dbSchemaUpgradeUntil6120(String component,
                                        int currentDatabaseVersionsIndex)

dbSchemaUpgrade

protected void dbSchemaUpgrade(String component,
                               int currentDatabaseVersionsIndex)

isTablePresent

public boolean isTablePresent(String tableName)

prependDatabaseTablePrefix

protected String prependDatabaseTablePrefix(String tableName)

getDbSqlSession

public DbSqlSession getDbSqlSession()

getProperty

public String getProperty(String propertyName)

getPropertyTable

protected String getPropertyTable()

getResourceForDbOperation

public String getResourceForDbOperation(String directory,
                                        String operation,
                                        String component,
                                        String databaseType)

getResourcesRootDirectory

protected abstract String getResourcesRootDirectory()

executeMandatorySchemaResource

public void executeMandatorySchemaResource(String operation,
                                           String component)

executeSchemaResource

public void executeSchemaResource(String operation,
                                  String component,
                                  String resourceName,
                                  boolean isOptional)

executeSchemaResource

protected void executeSchemaResource(String operation,
                                     String component,
                                     String resourceName,
                                     InputStream inputStream)

updateDdlForMySqlVersionLowerThan56

protected String updateDdlForMySqlVersionLowerThan56(String ddlStatements)

MySQL is funny when it comes to timestamps and dates. More specifically, for a DDL statement like 'MYCOLUMN timestamp(3)': - MySQL 5.6.4+ has support for timestamps/dates with millisecond (or smaller) precision. The DDL above works and the data in the table will have millisecond precision - MySQL < 5.5.3 allows the DDL statement, but ignores it. The DDL above works but the data won't have millisecond precision - MySQL 5.5.3 < [version] < 5.6.4 gives and exception when using the DDL above. Also, the 5.5 and 5.6 branches of MySQL are both actively developed and patched. Hence, when doing auto-upgrade/creation of the Flowable tables, the default MySQL DDL file is used and all timestamps/datetimes are converted to not use the millisecond precision by string replacement done in the method below. If using the DDL files directly (which is a sane choice in production env.), there is a distinction between MySQL version < 5.6.

addSqlStatementPiece

protected String addSqlStatementPiece(String sqlStatement,
                                      String line)

readNextTrimmedLine

protected String readNextTrimmedLine(BufferedReader reader)
                              throws IOException

Throws:

IOException