com.isomorphic.hibernate

## Class HibernateDataSource

- java.lang.Object
- - com.isomorphic.base.Base
  - - com.isomorphic.datasource.DataSource
    - - com.isomorphic.datasource.BasicDataSource
      - - com.isomorphic.hibernate.HibernateDataSource

- All Implemented Interfaces:
    IToJSON

      public class HibernateDataSource
      extends BasicDataSource

  A DataSource implementation for the Hibernate ORM system. SmartClient Server can integrate with Hibernate's ORM facilities, making use of new or existing bean mappings, or it can drive Hibernate as a pure storage layer in "beanless" mode. In this latter mode, SmartClient programs can connect to a Hibernate data store for all four CRUD operations, with zero server-side code or Hibernate configuration.

  See the client reference documentation for details of configuring and using Hibernate DataSources - search for "hibernateIntegration". For a wider general discussion of data integration options with SmartClient Server, search the client documentation for "serverDataIntegration"

  See Also:
    Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected java.util.Map` | `additionalFields` Holds list of additional fields requested by specific `DSRequest`.
    `protected java.lang.String` | `configName` Holds config name - can be configured with "jpaConfig" parameter.
    `static java.lang.Character` | `ESCAPE_CHARACTER` Holds character ('~') used to escape wild cards in 'like' clause.
    `protected java.lang.Boolean` | `generateRelatedUpdates` Holds value should related updates be generated.
    `static java.lang.String` | `HB_CONFIG_PROPERTY` Name of the Hibernate configuration name property.
    `protected java.util.List` | `relatedUpdates` Holds list of generated related updates.

    - ### Fields inherited from class com.isomorphic.datasource.DataSource

      `OP_ADD, OP_CLIENT_EXPORT, OP_CUSTOM, OP_DOWNLOAD_FILE, OP_FETCH, OP_GET_FILE, OP_GET_FILE_VERSION, OP_HAS_FILE, OP_HAS_FILE_VERSION, OP_LIST_FILE_VERSIONS, OP_LIST_FILES, OP_LOAD_SCHEMA, OP_REMOVE, OP_REMOVE_FILE, OP_REMOVE_FILE_VERSION, OP_RENAME_FILE, OP_SAVE_FILE, OP_UNIQUE_NAME, OP_UPDATE, OP_VALIDATE, OP_VIEW_FILE`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `commitTransaction(org.hibernate.Transaction trx)` Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.commitTransaction(com.isomorphic.datasource.DSTransaction)` instead
    `static java.lang.String` | `escapeValueForFilter(java.lang.Object value, char escapeChar)` Escapes characters "_" and "%" with specified character in value object.
    `DSField` | `getField(java.lang.String fieldName)` Returns `DSField` by specified name.
    `java.util.List` | `getFieldNames(boolean dropIgnored)` Returns combined list of data source configured and request configured field names.
    `static void` | `rollbackTransaction(org.hibernate.Transaction trx)` Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.rollbackTransaction(com.isomorphic.datasource.DSTransaction)` instead
    `static org.hibernate.Transaction` | `startTransaction()` Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.startTransaction(com.isomorphic.datasource.DSTransaction)` instead

    - ### Methods inherited from class com.isomorphic.datasource.BasicDataSource

      `getAuditDataSource, getAuditRecord, getAuditRecord, hasCustomDefaultFetchOperation, hasCustomLogic, shouldAutoJoinTransaction, shouldAutoStartTransaction, transformMultipleFields, transformMultipleFields, writeMultiAudits`

    - ### Methods inherited from class com.isomorphic.datasource.DataSource

      `add, add, addDynamicDSGenerator, addDynamicDSGenerator, addDynamicDSGenerator, clearDynamicDSGenerators, convertRelativeDates, convertRelativeDates, convertRelativeDates, convertRelativeDates, convertRelativeDates, convertRelativeDates, execute, executeAdd, executeClientExport, executeCustom, executeFetch, executeFileSource, executeRemove, executeUpdate, fetch, fetch, fetchById, fetchById, fetchById, fetchSingle, fetchSingle, filter, filter, fromXML, fromXML, fromXML, fromXML, fromXML, fromXML, fromXML, fromXML, getAuditChangedFieldsFieldName, getAuditRevisionFieldName, getAuditTimestampFieldName, getAuditTypeFieldName, getAuditUserFieldName, getDefaultDynamicDSGenerator, getDirectFields, getDynamicDSGenerators, getEnumConstantProperty, getEnumOrdinalProperty, getEnumTranslateStrategy, getFieldNames, getFile, getFileAsInputStream, getFileAsString, getFileContentsField, getFileFormatField, getFileNameField, getFileTypeField, getID, getListProperties, getListProperties, getListProperty, getMapProperty, getName, getNonIncludedFields, getObjectProperty, getOperationProperty, getPrimaryKey, getProperties, getProperties, getProperties, getProperty, getPropertyJavaClass, getRecordXPath, getRelatedDisplayRecord, getRelatedDisplayRecord, getRelatedTableAlias, getTableName, getTransactionObject, getTransactionObject, hasFile, hasRecord, hasRecord, initialized, isModificationOperation, isServerOnly, listFiles, listFiles, listFiles, listFiles, remove, removeDynamicDSGenerator, removeDynamicDSGenerator, removeDynamicDSGenerator, removeFile, renameFile, saveFile, setEnumConstantProperty, setEnumOrdinalProperty, setEnumTranslateStrategy, setOmitNullMapValuesInResponse, setProperties, transformImportValue, transformImportValue, transformResponse, update, update, validate, validate, validate, validateRecord`

    - ### Methods inherited from interface com.isomorphic.js.IToJSON

      `toJSON`

- - ### Field Detail

    - #### ESCAPE_CHARACTER

          public static final java.lang.Character ESCAPE_CHARACTER

      Holds character ('~') used to escape wild cards in 'like' clause. Avoid using backslash '\' or dollar sign '$' because it is often used in databases as DB escape or wild card characters.

    - #### HB_CONFIG_PROPERTY

          public static final java.lang.String HB_CONFIG_PROPERTY

      Name of the Hibernate configuration name property.
      See Also:
        Constant Field Values

    - #### configName

          protected java.lang.String configName

      Holds config name - can be configured with "jpaConfig" parameter. Holds empty string for default configuration.

    - #### relatedUpdates

          protected java.util.List relatedUpdates

      Holds list of generated related updates. Usage: set this field to empty list before executing `setProperties()`; subsequent calls to `setRelationFieldValue()` will add `DSResponse` objects for every change in related data sources.

    - #### generateRelatedUpdates

          protected java.lang.Boolean generateRelatedUpdates

      Holds value should related updates be generated. (Re)initialized on every `execute()` call. `true` - related updates will be generated; `false` - related updates will not be generated; `null` - related updates will be generated only for "add" and "update" operations, related updates will not be generated for "remove" operation.

    - #### additionalFields

          protected java.util.Map additionalFields

      Holds list of additional fields requested by specific `DSRequest`.

  - ### Method Detail

    - #### getFieldNames

          public java.util.List getFieldNames(boolean dropIgnored)

      Returns combined list of data source configured and request configured field names.
      Overrides:
        `getFieldNames` in class `DataSource`
      Parameters:
        `dropIgnored` - `boolean` `true` - ignored fields are dropped; `false` - ignored fields are included;
      Returns:
        `List` field names.

    - #### getField

          public DSField getField(java.lang.String fieldName)

      Returns `DSField` by specified name. First checks data source configured fields. Checks request configured fields if it is not found within data source configured fields. Returns `null` if `fieldName` parameter is `null` or field is not found.
      Overrides:
        `getField` in class `BasicDataSource`
      Parameters:
        `fieldName` - the name of the field whose definition you want
      Returns:
        `DSField` field.
      See Also:
        `DSField`

    - #### escapeValueForFilter

          public static java.lang.String escapeValueForFilter(java.lang.Object value,
                                                              char escapeChar)

      Escapes characters "_" and "%" with specified character in value object. Specified escape character is escped (doubled) as well. Empty string is returned if value object is null.
      Parameters:
        `value` - `Object` Value which should be escaped.
        `escapeChar` - `char` ecape character.
      Returns:
        `String` Escaped string value.

    - #### startTransaction

          public static org.hibernate.Transaction startTransaction()
                                                            throws java.lang.Exception

      Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.startTransaction(com.isomorphic.datasource.DSTransaction)` instead
      Start a new transaction. The transaction ends when either `HibernateDataSource.commitTransaction(org.hibernate.Transaction)` or`HibernateDataSource.rollbackTransaction(org.hibernate.Transaction)` is called for the transaction.
      Returns:
        the new transaction
      Throws:
        `java.lang.Exception`

    - #### rollbackTransaction

          public static void rollbackTransaction(org.hibernate.Transaction trx)
                                          throws java.lang.Exception

      Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.rollbackTransaction(com.isomorphic.datasource.DSTransaction)` instead
      Rollback and clean up the supplied transaction
      Throws:
        `java.lang.Exception` - if problems were found rolling back the transaction

    - #### commitTransaction

          public static void commitTransaction(org.hibernate.Transaction trx)
                                        throws java.lang.Exception

      Deprecated. As of SmartClient 8.0. Use `HibernateTransaction.commitTransaction(com.isomorphic.datasource.DSTransaction)` instead
      Commit and clean up the supplied transaction.
      Throws:
        `java.lang.Exception` - if problems were found committing the transaction