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## org.apache.openjpa.jdbc.kernel
Class DelegatingJDBCFetchConfiguration

    java.lang.Object
      org.apache.openjpa.kernel.DelegatingFetchConfiguration
          org.apache.openjpa.jdbc.kernel.DelegatingJDBCFetchConfiguration

All Implemented Interfaces:
  Serializable, Cloneable, EagerFetchModes, JDBCFetchConfiguration, LRSSizes, JoinSyntaxes, FetchConfiguration, LockLevels, LockScopes, QueryFlushModes

    public class DelegatingJDBCFetchConfiguration

extends DelegatingFetchConfiguration
implements JDBCFetchConfiguration

Delegating fetch configuration that can also perform exception transation for use in facades.

Since:
  0.4.0
Author:
  Abe White
See Also:
  Serialized Form

Field Summary

Fields inherited from interface org.apache.openjpa.kernel.FetchConfiguration
`DEFAULT, FETCH_LOAD, FETCH_NONE, FETCH_REF`

Fields inherited from interface org.apache.openjpa.kernel.LockLevels
`LOCK_NONE, LOCK_READ, LOCK_WRITE`

Fields inherited from interface org.apache.openjpa.kernel.LockScopes
`LOCKSCOPE_EXTENDED, LOCKSCOPE_NORMAL`

Fields inherited from interface org.apache.openjpa.kernel.QueryFlushModes
`FLUSH_FALSE, FLUSH_TRUE, FLUSH_WITH_CONNECTION`

Fields inherited from interface org.apache.openjpa.jdbc.kernel.EagerFetchModes
`EAGER_JOIN, EAGER_NONE, EAGER_PARALLEL`

Fields inherited from interface org.apache.openjpa.jdbc.kernel.LRSSizes
`SIZE_LAST, SIZE_QUERY, SIZE_UNKNOWN`

Fields inherited from interface org.apache.openjpa.jdbc.sql.JoinSyntaxes
`SYNTAX_DATABASE, SYNTAX_SQL92, SYNTAX_TRADITIONAL`

Constructor Summary
`DelegatingJDBCFetchConfiguration(JDBCFetchConfiguration delegate)` Constructor; supply delegate.
`DelegatingJDBCFetchConfiguration(JDBCFetchConfiguration delegate, RuntimeExceptionTranslator trans)` Constructor; supply delegate and exception translator.

Method Summary
`JDBCFetchConfiguration` | `addFetchInnerJoin(String field)` Adds `field` to the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `addFetchInnerJoins(Collection fields)` Adds `fields` to the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `addJoin(String field)` Adds `field` to the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `addJoins(Collection fields)` Adds `fields` to the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `clearJoins()` Clears the set of field names to join when loading data.
`int` | `getEagerFetchMode()` Return the eager fetch mode.
`int` | `getFetchDirection()` The fetch direction to use as a constant from `ResultSet`.
`Set` | `getFetchInnerJoins()` Returns the names of the inner fetch joins that this component will use when loading objects.
`boolean` | `getIgnoreDfgForFkSelect()` Affirms if foreign key for a relation field will be pre-fetched as part of the owning object irrespective of whether the field is included in the default fetch group of this fetch configuration.
`int` | `getIsolation()` The isolation level for queries issued to the database.
`JDBCFetchConfiguration` | `getJDBCDelegate()` Return the JDBC delegate.
`Set` | `getJoins()` Returns the names of the joins that this component will use when loading objects.
`int` | `getJoinSyntax()` The join syntax to use.
`int` | `getLRSSize()` The large result set size mode to use.
`int` | `getResultSetType()` The result set type to use as a constant from `ResultSet`.
`int` | `getSubclassFetchMode()` Return the subclass fetch mode.
`int` | `getSubclassFetchMode(ClassMapping cls)` Return the effective subclass fetch mode for the given type.
`boolean` | `hasFetchInnerJoin(String field)` Return true if the given fully-qualified inner fetch join has been added.
`boolean` | `hasJoin(String field)` Return true if the given fully-qualified join has been added.
`JDBCFetchConfiguration` | `removeJoin(String field)` Removes `field` to the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `removeJoins(Collection fields)` Removes `fields` from the set of fully-qualified field names to eagerly join when loading objects.
`JDBCFetchConfiguration` | `setEagerFetchMode(int mode)` Set the eager fetch mode.
`JDBCFetchConfiguration` | `setFetchDirection(int direction)` The fetch direction to use as a constant from `ResultSet`.
`void` | `setIgnoreDfgForFkSelect(boolean b)` Affirms if foreign key for a relation field will be pre-fetched as part of the owning object irrespective of whether the field is included in the default fetch group of this fetch configuration.
`JDBCFetchConfiguration` | `setIsolation(int level)` The isolation level for queries issued to the database.
`JDBCFetchConfiguration` | `setJoinSyntax(int syntax)` The join syntax to use.
`JDBCFetchConfiguration` | `setLRSSize(int lrsSize)` The large result set size mode to use.
`JDBCFetchConfiguration` | `setResultSetType(int type)` The result set type to use as a constant from `ResultSet`.
`JDBCFetchConfiguration` | `setSubclassFetchMode(int mode)` Set the subclass fetch mode.
`JDBCFetchConfiguration` | `traverseJDBC(FieldMetaData fm)` Convenience method to cast traversal to store-specific type.

Methods inherited from class org.apache.openjpa.kernel.DelegatingFetchConfiguration
`addFetchGroup, addFetchGroups, addField, addFields, clearFetchGroups, clearFields, clone, copy, equals, getCacheRetrieveMode, getCacheStoreMode, getContext, getDelegate, getExtendedPathLookup, getFetchBatchSize, getFetchGroups, getFields, getFlushBeforeQueries, getHint, getHints, getInnermostDelegate, getLockScope, getLockTimeout, getMaxFetchDepth, getQueryCacheEnabled, getQueryTimeout, getReadLockLevel, getRootClasses, getRootInstances, getWriteLockLevel, hasFetchGroup, hasField, hashCode, isHintSet, lock, newResultList, removeFetchGroup, removeFetchGroups, removeField, removeFields, requiresFetch, requiresLoad, resetFetchGroups, setCacheRetrieveMode, setCacheStoreMode, setContext, setExtendedPathLookup, setFetchBatchSize, setFlushBeforeQueries, setHint, setHint, setLockScope, setLockTimeout, setMaxFetchDepth, setQueryCacheEnabled, setQueryTimeout, setReadLockLevel, setRootClasses, setRootInstances, setWriteLockLevel, translate, traverse, unlock`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.openjpa.kernel.FetchConfiguration
`addFetchGroup, addFetchGroups, addField, addFields, clearFetchGroups, clearFields, clone, copy, getCacheRetrieveMode, getCacheStoreMode, getContext, getExtendedPathLookup, getFetchBatchSize, getFetchGroups, getFields, getFlushBeforeQueries, getHint, getHints, getLockScope, getLockTimeout, getMaxFetchDepth, getQueryCacheEnabled, getQueryTimeout, getReadLockLevel, getRootClasses, getRootInstances, getWriteLockLevel, hasFetchGroup, hasField, isHintSet, lock, newResultList, removeFetchGroup, removeFetchGroups, removeField, removeFields, requiresFetch, requiresLoad, resetFetchGroups, setCacheRetrieveMode, setCacheStoreMode, setContext, setExtendedPathLookup, setFetchBatchSize, setFlushBeforeQueries, setHint, setHint, setLockScope, setLockTimeout, setMaxFetchDepth, setQueryCacheEnabled, setQueryTimeout, setReadLockLevel, setRootClasses, setRootInstances, setWriteLockLevel, traverse, unlock`

Constructor Detail

### DelegatingJDBCFetchConfiguration

    public DelegatingJDBCFetchConfiguration(JDBCFetchConfiguration delegate)

  Constructor; supply delegate.

### DelegatingJDBCFetchConfiguration

    public DelegatingJDBCFetchConfiguration(JDBCFetchConfiguration delegate,
                                            RuntimeExceptionTranslator trans)

  Constructor; supply delegate and exception translator.

Method Detail

### getJDBCDelegate

    public JDBCFetchConfiguration getJDBCDelegate()

  Return the JDBC delegate.

### getEagerFetchMode

    public int getEagerFetchMode()

  Description copied from interface: `JDBCFetchConfiguration`
  Return the eager fetch mode. Defaults to the `openjpa.jdbc.EagerFetchMode` setting.

  Specified by:
    `getEagerFetchMode` in interface `JDBCFetchConfiguration`

### setEagerFetchMode

    public JDBCFetchConfiguration setEagerFetchMode(int mode)

  Description copied from interface: `JDBCFetchConfiguration`
  Set the eager fetch mode. Defaults to the `openjpa.jdbc.EagerFetchMode` setting.

  Specified by:
    `setEagerFetchMode` in interface `JDBCFetchConfiguration`

### getSubclassFetchMode

    public int getSubclassFetchMode()

  Description copied from interface: `JDBCFetchConfiguration`
  Return the subclass fetch mode. Defaults to the `openjpa.jdbc.SubclassFetchMode` setting.

  Specified by:
    `getSubclassFetchMode` in interface `JDBCFetchConfiguration`

### getSubclassFetchMode

    public int getSubclassFetchMode(ClassMapping cls)

  Description copied from interface: `JDBCFetchConfiguration`
  Return the effective subclass fetch mode for the given type.

  Specified by:
    `getSubclassFetchMode` in interface `JDBCFetchConfiguration`

### setSubclassFetchMode

    public JDBCFetchConfiguration setSubclassFetchMode(int mode)

  Description copied from interface: `JDBCFetchConfiguration`
  Set the subclass fetch mode. Defaults to the `openjpa.jdbc.SubclassFetchMode` setting.

  Specified by:
    `setSubclassFetchMode` in interface `JDBCFetchConfiguration`

### getResultSetType

    public int getResultSetType()

  Description copied from interface: `JDBCFetchConfiguration`
  The result set type to use as a constant from `ResultSet`. Defaults to the `openjpa.jdbc.ResultSetType` setting.

  Specified by:
    `getResultSetType` in interface `JDBCFetchConfiguration`

### setResultSetType

    public JDBCFetchConfiguration setResultSetType(int type)

  Description copied from interface: `JDBCFetchConfiguration`
  The result set type to use as a constant from `ResultSet`. Defaults to the `openjpa.jdbc.ResultSetType` setting.

  Specified by:
    `setResultSetType` in interface `JDBCFetchConfiguration`

### getFetchDirection

    public int getFetchDirection()

  Description copied from interface: `JDBCFetchConfiguration`
  The fetch direction to use as a constant from `ResultSet`. Defaults to the `openjpa.jdbc.FetchDirection` setting.

  Specified by:
    `getFetchDirection` in interface `JDBCFetchConfiguration`

### setFetchDirection

    public JDBCFetchConfiguration setFetchDirection(int direction)

  Description copied from interface: `JDBCFetchConfiguration`
  The fetch direction to use as a constant from `ResultSet`. Defaults to the `openjpa.jdbc.FetchDirection` setting.

  Specified by:
    `setFetchDirection` in interface `JDBCFetchConfiguration`

### getLRSSize

    public int getLRSSize()

  Description copied from interface: `JDBCFetchConfiguration`
  The large result set size mode to use. Defaults to the `openjpa.jdbc.LRSSize` setting.

  Specified by:
    `getLRSSize` in interface `JDBCFetchConfiguration`

### setLRSSize

    public JDBCFetchConfiguration setLRSSize(int lrsSize)

  Description copied from interface: `JDBCFetchConfiguration`
  The large result set size mode to use. Defaults to the `openjpa.jdbc.LRSSize` setting.

  Specified by:
    `setLRSSize` in interface `JDBCFetchConfiguration`

### getJoinSyntax

    public int getJoinSyntax()

  Description copied from interface: `JDBCFetchConfiguration`
  The join syntax to use.

  Specified by:
    `getJoinSyntax` in interface `JDBCFetchConfiguration`

### setJoinSyntax

    public JDBCFetchConfiguration setJoinSyntax(int syntax)

  Description copied from interface: `JDBCFetchConfiguration`
  The join syntax to use.

  Specified by:
    `setJoinSyntax` in interface `JDBCFetchConfiguration`

### getJoins

    public Set getJoins()

  Description copied from interface: `JDBCFetchConfiguration`
  Returns the names of the joins that this component will use when loading objects. Defaults to the empty set. This set is not thread safe.

  Specified by:
    `getJoins` in interface `JDBCFetchConfiguration`

### hasJoin

    public boolean hasJoin(String field)

  Description copied from interface: `JDBCFetchConfiguration`
  Return true if the given fully-qualified join has been added.

  Specified by:
    `hasJoin` in interface `JDBCFetchConfiguration`

### addJoin

    public JDBCFetchConfiguration addJoin(String field)

  Description copied from interface: `JDBCFetchConfiguration`
  Adds `field` to the set of fully-qualified field names to eagerly join when loading objects. Each class can have at most one to-many eagerly joined fields.

  Specified by:
    `addJoin` in interface `JDBCFetchConfiguration`

### addJoins

    public JDBCFetchConfiguration addJoins(Collection fields)

  Description copied from interface: `JDBCFetchConfiguration`
  Adds `fields` to the set of fully-qualified field names to eagerly join when loading objects. Each class can have at most one to-many eagerly joined fields.

  Specified by:
    `addJoins` in interface `JDBCFetchConfiguration`

### removeJoin

    public JDBCFetchConfiguration removeJoin(String field)

  Description copied from interface: `JDBCFetchConfiguration`
  Removes `field` to the set of fully-qualified field names to eagerly join when loading objects.

  Specified by:
    `removeJoin` in interface `JDBCFetchConfiguration`

### removeJoins

    public JDBCFetchConfiguration removeJoins(Collection fields)

  Description copied from interface: `JDBCFetchConfiguration`
  Removes `fields` from the set of fully-qualified field names to eagerly join when loading objects.

  Specified by:
    `removeJoins` in interface `JDBCFetchConfiguration`

### clearJoins

    public JDBCFetchConfiguration clearJoins()

  Description copied from interface: `JDBCFetchConfiguration`
  Clears the set of field names to join when loading data.

  Specified by:
    `clearJoins` in interface `JDBCFetchConfiguration`

### getIsolation

    public int getIsolation()

  Description copied from interface: `JDBCFetchConfiguration`

  The isolation level for queries issued to the database. This overrides the persistence-unit-wide `openjpa.jdbc.TransactionIsolation` value.

  Must be one of `Connection.TRANSACTION_NONE`, `Connection.TRANSACTION_READ_UNCOMMITTED`, `Connection.TRANSACTION_READ_COMMITTED`, `Connection.TRANSACTION_REPEATABLE_READ`, `Connection.TRANSACTION_SERIALIZABLE`, or -1 for the default connection level specified by the context in which this fetch configuration is being used.

  Specified by:
    `getIsolation` in interface `JDBCFetchConfiguration`

### setIsolation

    public JDBCFetchConfiguration setIsolation(int level)

  Description copied from interface: `JDBCFetchConfiguration`

  The isolation level for queries issued to the database. This overrides the persistence-unit-wide `openjpa.jdbc.TransactionIsolation` value.

  Must be one of `Connection.TRANSACTION_NONE`, `Connection.TRANSACTION_READ_UNCOMMITTED`, `Connection.TRANSACTION_READ_COMMITTED`, `Connection.TRANSACTION_REPEATABLE_READ`, `Connection.TRANSACTION_SERIALIZABLE`, or -1 for the default connection level specified by the context in which this fetch configuration is being used.

  Specified by:
    `setIsolation` in interface `JDBCFetchConfiguration`

### traverseJDBC

    public JDBCFetchConfiguration traverseJDBC(FieldMetaData fm)

  Description copied from interface: `JDBCFetchConfiguration`
  Convenience method to cast traversal to store-specific type.

  Specified by:
    `traverseJDBC` in interface `JDBCFetchConfiguration`

### getFetchInnerJoins

    public Set getFetchInnerJoins()

  Description copied from interface: `JDBCFetchConfiguration`
  Returns the names of the inner fetch joins that this component will use when loading objects. Defaults to the empty set. This set is not thread safe.

  Specified by:
    `getFetchInnerJoins` in interface `JDBCFetchConfiguration`

### hasFetchInnerJoin

    public boolean hasFetchInnerJoin(String field)

  Description copied from interface: `JDBCFetchConfiguration`
  Return true if the given fully-qualified inner fetch join has been added.

  Specified by:
    `hasFetchInnerJoin` in interface `JDBCFetchConfiguration`

### addFetchInnerJoin

    public JDBCFetchConfiguration addFetchInnerJoin(String field)

  Description copied from interface: `JDBCFetchConfiguration`
  Adds `field` to the set of fully-qualified field names to eagerly join when loading objects. Each class can have at most one to-many eagerly joined fields.

  Specified by:
    `addFetchInnerJoin` in interface `JDBCFetchConfiguration`

### addFetchInnerJoins

    public JDBCFetchConfiguration addFetchInnerJoins(Collection fields)

  Description copied from interface: `JDBCFetchConfiguration`
  Adds `fields` to the set of fully-qualified field names to eagerly join when loading objects. Each class can have at most one to-many eagerly joined fields.

  Specified by:
    `addFetchInnerJoins` in interface `JDBCFetchConfiguration`

### setIgnoreDfgForFkSelect

    public void setIgnoreDfgForFkSelect(boolean b)

  Description copied from interface: `JDBCFetchConfiguration`
  Affirms if foreign key for a relation field will be pre-fetched as part of the owning object irrespective of whether the field is included in the default fetch group of this fetch configuration.
  By default, foreign key for a relation field is pre-fetched as part of the owning object only if the field in included in the default fetch group of this fetch configuration.

  Specified by:
    `setIgnoreDfgForFkSelect` in interface `JDBCFetchConfiguration`

### getIgnoreDfgForFkSelect

    public boolean getIgnoreDfgForFkSelect()

  Description copied from interface: `JDBCFetchConfiguration`
  Affirms if foreign key for a relation field will be pre-fetched as part of the owning object irrespective of whether the field is included in the default fetch group of this fetch configuration.
  By default, foreign key for a relation field is pre-fetched as part of the owning object only if the field in included in the default fetch group of this fetch configuration.

  Specified by:
    `getIgnoreDfgForFkSelect` in interface `JDBCFetchConfiguration`

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