Examples of org.xorm.cache.DataCache

org.xorm.cache.DataCache

The interface for a XORM cache. The cache contains Row objects. It is up to an implementation to determine the cache strategy and layout. A cache is not required to hold a reference for any period of time. The only requirements are as follows:

If the get(table,primaryKey) does not return null, its return value must be equal (.equals()) to the most recently added Row where row.getTable() and row.getPrimaryKeyValue() are equal (.equals()) to the parameters.
remove(row) must remove the given row from the cache (by .equals()). That is, if remove(row) is called, an immediate call to get(row.getTable(), row.getPrimaryKeyValue()) must return null.
The cache must not call any methods that would modify the internal contents of a Row (for example, row.setValue()).

The cache implementation may take arbitrary parameters specified in the JDO initialization properties set.

        return false;
    }


    
    void addToCache(Row row) {
        DataCache cache = factory.getCache();
        if (cache != null) {
            // Don't need to clone anymore...cached flag instead
            //cache.add((Row) row.clone());
            cache.add(row);
        }
    }

            cache.add(row);
        }
    }


    void addToCache(Collection rows) {
        DataCache cache = factory.getCache();
        if (cache != null) {
            Iterator i = rows.iterator();
            while (i.hasNext()) {
                Row row = (Row) i.next();
                // Don't need to clone anymore...cached flag instead
                //cache.add((Row) row.clone());
                cache.add(row);
            }
        }
    }

            }
        }
    }


    Row getFromCache(Table table, Object primaryKey) {
        DataCache cache = factory.getCache();
        if (cache != null) {
            Row row = cache.get(table, primaryKey);
            return row;
        } else {
            return null;
        }
    }

            return null;
        }
    }


    void removeFromCache(Row row) {
        DataCache cache = factory.getCache();
        if (cache != null) {
            cache.remove(row);
        }
    }

Examples of org.xorm.cache.DataCache

Related Classes of org.xorm.cache.DataCache