AuditDSGenerator (Smart GWT EE Server API 5.0p (2021-05-26))

com.isomorphic.datasource.AuditDSGenerator

```
public class AuditDSGenerator
```
This class implements a DynamicDSGenerator which generates an audit DataSource based on a DataSource which has auditing enabled.
An audit DataSource is a DataSource which basically inherits from the original DataSource and adds some additional metadata which allows storing the timestamp, revision, user and operation type in addition to record field values on each add, update and remove operations.
In order to enable audit for a DataSource you have to specify the audit=true property.
There are additional properties which can be specified in order to control how the new fields are named:
- auditUserFieldName - specify the field name used to store the user who performed the operation. If empty string is specified as value, then this field won't be created. Default value is user.
- auditRevisionFieldName - specify the field name used to store the revision information. If empty string is specified as value, then this field won't be created. Default value is revision.
- auditTimeStampFieldName - specify the field name used to store the timestamp of the operation. If empty string is specified as value, then this field won't be created. Default value is timestamp.
- auditTypeFieldName - specify the field name used to store the operation type. If empty string is specified as value, then this field won't be created. Default value is type.
- auditDataSourceID - the id of the generated DataSource. Default value is audit_[OriginalDSID].
In addition to this, setting audit=false property on a field will disable tracking on that field. In effect, the field won't be stored in the audit DataSource

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addMapping(java.lang.String auditDSID, java.lang.String dsID)` Add a mapping between an audit `DataSource` and audited `DataSource`
`static java.lang.String`	`getAuditDSConstructor(DataSource ds)` Get the serverConstructor configured for the given `DataSource`
`static java.lang.String`	`getAuditRevisionFieldName(DataSource ds)` Get the revision field name configured for the given `DataSource`
`static java.lang.String`	`getAuditSchemaName(DataSource ds)` Get the schema configured for the given `DataSource`
`static java.lang.String`	`getAuditTimestampFieldName(DataSource ds)` Get the timestamp field name configured for the given `DataSource`
`static java.lang.String`	`getAuditTypeFieldName(DataSource ds)` Get the type field name configured for the given `DataSource`
`static java.lang.String`	`getAuditUserFieldName(DataSource ds)` Get the user field name configured for the given `DataSource`
`boolean`	`hasMappingFor(java.lang.String auditDSID)` Returns true if the specified audit `DataSource` is already mapped inside the `AuditDSGenerator`

- Method Detail
  - getAuditRevisionFieldName
```
public static java.lang.String getAuditRevisionFieldName(DataSource ds)
```
    Get the revision field name configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve the revision field name.
    
    Returns:
    the field name representing the revision field configured for the audit DataSource passed as parameter.
  - getAuditTimestampFieldName
```
public static java.lang.String getAuditTimestampFieldName(DataSource ds)
```
    Get the timestamp field name configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve the timestamp field name.
    
    Returns:
    the field name representing the timestamp field configured for the audit DataSource passed as parameter.
  - getAuditUserFieldName
```
public static java.lang.String getAuditUserFieldName(DataSource ds)
```
    Get the user field name configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve the user field name.
    
    Returns:
    the field name representing the user field configured for the audit DataSource passed as parameter.
  - getAuditTypeFieldName
```
public static java.lang.String getAuditTypeFieldName(DataSource ds)
```
    Get the type field name configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve the type field name.
    
    Returns:
    the field name representing the type field configured for the audit DataSource passed as parameter.
  - getAuditSchemaName
```
public static java.lang.String getAuditSchemaName(DataSource ds)
```
    Get the schema configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve schema name.
    
    Returns:
    the schema name configured for the audit DataSource passed as parameter.
  - getAuditDSConstructor
```
public static java.lang.String getAuditDSConstructor(DataSource ds)
```
    Get the serverConstructor configured for the given DataSource
    
    Parameters:
    ds - the audit DataSource for which we want to retrieve the serverConstructor.
    
    Returns:
    the serverConstructor configured for the audit DataSource passed as parameter.
  - addMapping
```
public void addMapping(java.lang.String auditDSID,
              java.lang.String dsID)
```
    Add a mapping between an audit DataSource and audited DataSource
    
    Parameters:
    auditDSID - the audit DataSource to be generated
    dsID - the audited DataSource for which we need to generate the audit DataSource
  - hasMappingFor
```
public boolean hasMappingFor(java.lang.String auditDSID)
```
    Returns true if the specified audit DataSource is already mapped inside the AuditDSGenerator
    
    Parameters:
    auditDSID - auditDSID the audit DataSource to be generated
    
    Returns:
    true if the audit DataSource is already mapped by the AuditDSGenerator

Class AuditDSGenerator

Method Summary

Method Detail

getAuditRevisionFieldName

getAuditTimestampFieldName

getAuditUserFieldName

getAuditTypeFieldName

getAuditSchemaName

getAuditDSConstructor

addMapping

hasMappingFor