Package org.cumulus4j.store.query.method

Package providing handlers for various JDOQL/JPQL methods, utilising the index information and querying the backend datastore as necessary to access the DataEntry objects matching the particular method clause.

See:
Description

Interface Summary

MethodEvaluator

Interface for the evaluator for a method.

Class Summary

AbstractMethodEvaluator	Abstract base for all method evaluators.
CollectionContainsEvaluator	Evaluator for "Collection.contains(element)".
CollectionIsEmptyEvaluator	Evaluator for "Collection.isEmpty()".
CollectionSizeEvaluator	Evaluator for "Collection.size() {oper} {comparisonArg}".
DateGetDayEvaluator	Evaluator for "Date.getDay() {oper} {compareTo}".
DateGetHourEvaluator	Evaluator for "Date.getHour() {oper} {compareTo}".
DateGetMinuteEvaluator	Evaluator for "Date.getMinute() {oper} {compareTo}".
DateGetMonthEvaluator	Evaluator for "Date.getMonth() {oper} {compareTo}".
DateGetSecondEvaluator	Evaluator for "Date.getSecond() {oper} {compareTo}".
DateGetYearEvaluator	Evaluator for "Date.getYear() {oper} {compareTo}".
MapContainsKeyEvaluator	Evaluator for "Map.containsKey(key)".
MapContainsValueEvaluator	Evaluator for "Map.containsValue(val)".
MapIsEmptyEvaluator	Evaluator for "Map.isEmpty()".
MapSizeEvaluator	Evaluator for "Map.size() {oper} {comparisonArg}".
StringEndsWithEvaluator	Evaluator for "{String}.endsWith(arg)".
StringEqualsEvaluator	Evaluator for "{String}.equals(arg)".
StringEqualsIgnoreCaseEvaluator	Evaluator for "{String}.equalsIgnoreCase(arg)".
StringIndexOfEvaluator	Evaluator for "String.indexOf(str [,from]) {oper} {compareTo}".
StringLengthEvaluator	Evaluator for "String.length(str) {oper} {compareTo}".
StringMatchesEvaluator	Evaluator for "{String}.matches(arg)".
StringStartsWithEvaluator	Evaluator for "{String}.startsWith(arg)".
StringSubstringEvaluator	Evaluator for "String.substring(pos1 [, pos2]) {oper} {compareTo}".
StringToLowerCaseEvaluator	Evaluator for "String.toLowerCase() {oper} {compareTo}".
StringToUpperCaseEvaluator	Evaluator for "String.toUpperCase() {oper} {compareTo}".

Package org.cumulus4j.store.query.method Description

Package providing handlers for various JDOQL/JPQL methods, utilising the index information and querying the backend datastore as necessary to access the DataEntry objects matching the particular method clause. Note that each method handler will typically evaluate a Boolean clause. This is simple for things like "Collection.isEmpty" which returns boolean, but for methods like String.substring() it has to be part of a comparison with some other String, and consequently caters for a most-used subset of the possible combinations.