Examples of org.eclipse.persistence.internal.sessions.ResultSetRecord

Package org.eclipse.persistence.internal.sessions

Examples of org.eclipse.persistence.internal.sessions.ResultSetRecord

org.eclipse.persistence.internal.sessions.ResultSetRecord
PERF: Record used by ObjectLevelReadQuery ResultSet optimization. The record corresponds to a single position (resultSet.next() is never called). 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 and resultSet is nullified. In this case the fields' values not required after object population (those not involved in indirection) are nullified to save space in the record.

                    hasNext = resultSet.next(); 
                }
            } else {
                boolean shouldKeepRow = this.descriptor.getObjectBuilder().shouldKeepRow();
                while (hasNext) {
                    ResultSetRecord row = new ResultSetRecord(fields, fieldsArray, resultSet, metaData, dbAccessor, executionSession, platform, optimizeData);
                    Object clone = buildObject(row);
                    if (quickAdd) {
                        ((Collection)clones).add(clone);
                    } else {
                        // TODO: investigate is it possible to support MappedKeyMapPolicy - this policy currently is not compatible with ResultSet optimization
                        cp.addInto(clone, clones, unitOfWork);
                    }
                    
                    if (shouldKeepRow) {
                        if (row.hasResultSet()) {
                          // ResultSet has not been fully triggered - that means the cached object was used. 
                          // Yet the row still may be cached in a value holder (see loadBatchReadAttributes and loadJoinedAttributes methods).
                          // Remove ResultSet to avoid attempt to trigger it (already closed) when pk or fk values (already extracted) accessed when the value holder is instantiated.
                            row.removeResultSet();
                        } else {
                            row.removeNonIndirectionValues();
                        }
                    }
                    hasNext = resultSet.next(); 
                }
            }

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                        if (this.descriptor.isDescriptorTypeAggregate()) {
                            // Aggregate Collection may have an unmapped primary key referencing the owner, the corresponding field will not be used when the object is populated and therefore may not be cleared.
                            ((SimpleResultSetRecord)row).setShouldKeepValues(true);
                        }
                    } else {
                        row = new ResultSetRecord(call.getFields(), call.getFieldsArray(), resultSet, metaData, dbAccessor, getExecutionSession(), platform, optimizeData);
                    }
                    if (session.isUnitOfWork()) {
                        result = registerResultInUnitOfWork(row, (UnitOfWorkImpl)session, this.translationRow, true);
                    } else {
                        result = buildObject(row);

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                        if (this.descriptor.isDescriptorTypeAggregate()) {
                            // Aggregate Collection may have an unmapped primary key referencing the owner, the corresponding field will not be used when the object is populated and therefore may not be cleared.
                            ((SimpleResultSetRecord)row).setShouldKeepValues(true);
                        }
                    } else {
                        row = new ResultSetRecord(call.getFields(), call.getFieldsArray(), resultSet, metaData, dbAccessor, getExecutionSession(), platform, optimizeData);
                    }
                    if (session.isUnitOfWork()) {
                        result = registerResultInUnitOfWork(row, (UnitOfWorkImpl)session, this.translationRow, true);
                    } else {
                        result = buildObject(row);

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                    hasNext = resultSet.next(); 
                }
            } else {
                boolean shouldKeepRow = this.descriptor.getObjectBuilder().shouldKeepRow();
                while (hasNext) {
                    ResultSetRecord row = new ResultSetRecord(fields, fieldsArray, resultSet, metaData, dbAccessor, executionSession, platform, optimizeData);
                    Object clone = buildObject(row);
                    if (quickAdd) {
                        ((Collection)clones).add(clone);
                    } else {
                        // TODO: investigate is it possible to support MappedKeyMapPolicy - this policy currently is not compatible with ResultSet optimization
                        cp.addInto(clone, clones, unitOfWork);
                    }
                    
                    if (shouldKeepRow) {
                        if (row.hasResultSet()) {
                          // ResultSet has not been fully triggered - that means the cached object was used. 
                          // Yet the row still may be cached in a value holder (see loadBatchReadAttributes and loadJoinedAttributes methods).
                          // Remove ResultSet to avoid attempt to trigger it (already closed) when pk or fk values (already extracted) accessed when the value holder is instantiated.
                            row.removeResultSet();
                        } else {
                            row.removeNonIndirectionValues();
                        }
                    }
                    hasNext = resultSet.next(); 
                }
            }

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                        if (this.descriptor.isDescriptorTypeAggregate()) {
                            // Aggregate Collection may have an unmapped primary key referencing the owner, the corresponding field will not be used when the object is populated and therefore may not be cleared.
                            ((SimpleResultSetRecord)row).setShouldKeepValues(true);
                        }
                    } else {
                        row = new ResultSetRecord(call.getFields(), call.getFieldsArray(), resultSet, metaData, dbAccessor, getExecutionSession(), platform, optimizeData);
                    }
                    if (session.isUnitOfWork()) {
                        result = registerResultInUnitOfWork(row, (UnitOfWorkImpl)session, this.translationRow, true);
                    } else {
                        result = buildObject(row);

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                    hasNext = resultSet.next(); 
                }
            } else {
                boolean shouldKeepRow = this.descriptor.getObjectBuilder().shouldKeepRow();
                while (hasNext) {
                    ResultSetRecord row = new ResultSetRecord(fields, fieldsArray, resultSet, metaData, dbAccessor, executionSession, platform, optimizeData);
                    Object clone = buildObject(row);
                    if (quickAdd) {
                        ((Collection)clones).add(clone);
                    } else {
                        // TODO: investigate is it possible to support MappedKeyMapPolicy - this policy currently is not compatible with ResultSet optimization
                        cp.addInto(clone, clones, unitOfWork);
                    }
                    
                    if (shouldKeepRow) {
                        if (row.hasResultSet()) {
                          // ResultSet has not been fully triggered - that means the cached object was used. 
                          // Yet the row still may be cached in a value holder (see loadBatchReadAttributes and loadJoinedAttributes methods).
                          // Remove ResultSet to avoid attempt to trigger it (already closed) when pk or fk values (already extracted) accessed when the value holder is instantiated.
                            row.removeResultSet();
                        } else {
                            row.removeNonIndirectionValues();
                        }
                    }
                    hasNext = resultSet.next(); 
                }
            }

View Full Code Here

                        if (this.descriptor.isDescriptorTypeAggregate()) {
                            // Aggregate Collection may have an unmapped primary key referencing the owner, the corresponding field will not be used when the object is populated and therefore may not be cleared.
                            ((SimpleResultSetRecord)row).setShouldKeepValues(true);
                        }
                    } else {
                        row = new ResultSetRecord(call.getFields(), call.getFieldsArray(), resultSet, metaData, dbAccessor, getExecutionSession());
                    }
                    if (session.isUnitOfWork()) {
                        result = registerResultInUnitOfWork(row, (UnitOfWorkImpl)session, this.translationRow, true);
                    } else {
                        result = buildObject(row);

View Full Code Here

                    }
                }
            } else {
                boolean shouldKeepRow = this.descriptor.getObjectBuilder().shouldKeepRow();
                while (hasNext) {
                    ResultSetRecord row = new ResultSetRecord(fields, fieldsArray, resultSet, metaData, dbAccessor, executionSession);
                    Object clone = buildObject(row);
                    if (quickAdd) {
                        ((Collection)clones).add(clone);
                    } else {
                        // TODO: investigate is it possible to support MappedKeyMapPolicy - this policy currently is not compatible with ResultSet optimization
                        cp.addInto(clone, clones, unitOfWork);
                    }
                    
                    if (shouldKeepRow && !row.hasResultSet()) {
                        row.removeNonIndirectionValues();
                    }
                    hasNext = resultSet.next(); 
                }
            }
        }

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Related Classes of org.eclipse.persistence.internal.sessions.ResultSetRecord

org.eclipse.persistence.internal.helper.DatabaseField

org.eclipse.persistence.queries.ReadAllQuery

org.eclipse.persistence.queries.ReadObjectQuery

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