org.eclipse.persistence.internal.sessions

Class SimpleResultSetRecord

java.lang.Object

org.eclipse.persistence.internal.core.sessions.CoreAbstractRecord

org.eclipse.persistence.internal.sessions.AbstractRecord

org.eclipse.persistence.sessions.DatabaseRecord

org.eclipse.persistence.internal.sessions.ArrayRecord

org.eclipse.persistence.internal.sessions.ResultSetRecord

org.eclipse.persistence.internal.sessions.SimpleResultSetRecord

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map, Record

public class SimpleResultSetRecord
extends ResultSetRecord

PERF: Record used by ObjectLevelReadQuery ResultSet optimization. This is a subclass of ResultSetRecord that's used with simple descriptors (descriptor.getObjectBuilder().isSimple()) - those having only DirectToField mappings. In this case the record is not cached by any mapping therefore could be reused in ReadAllQuery - (which calls resultSet.next()). In case the cached object used instead of creating a new one from the record, the not needed fields' values are never obtained from resultSet (that's especially important for expensive LOBs). If alternatively the record is used to populate an object then all the values obtained from resultSet are nullified after use.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.persistence.internal.sessions.AbstractRecord

AbstractRecord.NoEntry

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Field Summary

Fields inherited from class org.eclipse.persistence.internal.sessions.AbstractRecord

noEntry

Constructor Summary

Constructors

Constructor and Description
SimpleResultSetRecord(java.util.Vector fields, DatabaseField[] fieldsArray, java.sql.ResultSet resultSet, java.sql.ResultSetMetaData metaData, DatabaseAccessor accessor, AbstractSession session, DatabasePlatform platform, boolean optimizeData)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	get(DatabaseField key) INTERNAL: Retrieve the value for the field.
java.lang.Object	getIndicatingNoEntry(DatabaseField key) INTERNAL: Retrieve the value for the field.
boolean	hasValues()
boolean	isPopulatingObject()
void	loadAllValuesFromResultSet() Obtains all the value from resultSet and removes it.
void	reset()
void	setShouldKeepValues(boolean shouldKeepValues)
void	setShouldUseOptimization(boolean shouldUseOptimization)
void	setSopObject(java.lang.Object sopObject) INTERNAL:
boolean	shouldKeepValues()
boolean	shouldUseOptimization()

Methods inherited from class org.eclipse.persistence.internal.sessions.ResultSetRecord

clear, containsValue, hasResultSet, removAllValue, removeNonIndirectionValues, removeResultSet

Methods inherited from class org.eclipse.persistence.internal.sessions.ArrayRecord

add, clone, containsKey, getField, getFields, getValues, put, remove, replaceAt, replaceAt, size, toString

Methods inherited from class org.eclipse.persistence.internal.sessions.AbstractRecord

contains, containsKey, containsKey, elements, entrySet, get, get, getIndicatingNoEntry, getSopObject, getValues, getValues, hasNullValueInFields, hasSopObject, isEmpty, keys, keySet, mergeFrom, put, put, putAll, remove, remove, setNullValueInFields, values

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

SimpleResultSetRecord

public SimpleResultSetRecord(java.util.Vector fields,
                             DatabaseField[] fieldsArray,
                             java.sql.ResultSet resultSet,
                             java.sql.ResultSetMetaData metaData,
                             DatabaseAccessor accessor,
                             AbstractSession session,
                             DatabasePlatform platform,
                             boolean optimizeData)

Method Detail

loadAllValuesFromResultSet

public void loadAllValuesFromResultSet()

Obtains all the value from resultSet and removes it. resultSet must be non null.

Overrides:

loadAllValuesFromResultSet in class ResultSetRecord

get

public java.lang.Object get(DatabaseField key)

INTERNAL: Retrieve the value for the field. If missing null is returned.

Overrides:

get in class ResultSetRecord

getIndicatingNoEntry

public java.lang.Object getIndicatingNoEntry(DatabaseField key)

INTERNAL: Retrieve the value for the field. If missing DatabaseRow.noEntry is returned. PERF: This method is a clone of get() for performance.

Overrides:

getIndicatingNoEntry in class ResultSetRecord

reset

public void reset()

shouldKeepValues

public boolean shouldKeepValues()

setShouldKeepValues

public void setShouldKeepValues(boolean shouldKeepValues)

shouldUseOptimization

public boolean shouldUseOptimization()

setShouldUseOptimization

public void setShouldUseOptimization(boolean shouldUseOptimization)

hasValues

public boolean hasValues()

isPopulatingObject

public boolean isPopulatingObject()

setSopObject

public void setSopObject(java.lang.Object sopObject)

Description copied from class: AbstractRecord

INTERNAL:

Overrides:

setSopObject in class ResultSetRecord