Package org.castor.ddlgen.keygenerator
Class IdentityKeyGenerator
- java.lang.Object
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- org.castor.ddlgen.schemaobject.AbstractSchemaObject
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- org.castor.ddlgen.schemaobject.KeyGenerator
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- org.castor.ddlgen.keygenerator.IdentityKeyGenerator
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- All Implemented Interfaces:
SchemaObject
public final class IdentityKeyGenerator extends KeyGenerator
IDENTITY key generator can be used only with autoincrement primary key columns (identities) with Sybase ASE/ASA, MS SQL Server, MySQL and Hypersonic SQL. After the insert the key generator selects system variable @@identity which contains the last identity value for the current database connection. In the case of MySQL and Hypersonic SQL the system functions LAST_INSERT_ID() and IDENTITY() are called, respectively.- Since:
- 1.1
- Version:
- $Revision: 5951 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
- Author:
- Le Duc Bao, Ralf Joachim
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Field Summary
Fields Modifier and Type Field Description static java.lang.String
ALGORITHM_NAME
Name of key generator algorithm.-
Fields inherited from class org.castor.ddlgen.schemaobject.AbstractSchemaObject
HASHFACTOR
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Constructor Summary
Constructors Constructor Description IdentityKeyGenerator()
Constructor for default IDENTITY key generator.IdentityKeyGenerator(KeyGeneratorDef definition)
Constructor for IDENTITY key generator specified by given defintion.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
toCreateDDL(DDLWriter writer)
Build create script for the schema object.void
toDropDDL(DDLWriter writer)
Build drop script for the schema object.-
Methods inherited from class org.castor.ddlgen.schemaobject.KeyGenerator
equals, getAlias, getTable, hashCode, merge, setAlias, setTable
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Methods inherited from class org.castor.ddlgen.schemaobject.AbstractSchemaObject
equals, getConfiguration, getName, setConfiguration, setName
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Field Detail
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ALGORITHM_NAME
public static final java.lang.String ALGORITHM_NAME
Name of key generator algorithm.- See Also:
- Constant Field Values
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Constructor Detail
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IdentityKeyGenerator
public IdentityKeyGenerator()
Constructor for default IDENTITY key generator.
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IdentityKeyGenerator
public IdentityKeyGenerator(KeyGeneratorDef definition)
Constructor for IDENTITY key generator specified by given defintion.- Parameters:
definition
- Key generator definition.
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Method Detail
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toCreateDDL
public void toCreateDDL(DDLWriter writer)
Build create script for the schema object.- Parameters:
writer
- DDLWriter to write schema objects to.
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toDropDDL
public void toDropDDL(DDLWriter writer)
Build drop script for the schema object.- Parameters:
writer
- DDLWriter to write schema objects to.
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