Package org.datanucleus.query.evaluator.memory

Package providing the evaluation of in-memory queries.

See:
Description

Interface Summary

InvocationEvaluator

Interface representing an evaluator for an invocation of a method/function.

Class Summary

AbsFunctionEvaluator	Evaluator for the function ABS(numExpr).
AggregateExpression
BigDecimalAggregateExpression	Expression representing a BigDecimal, used in evaluation of aggregates.
BigIntegerAggregateExpression	Expression representing a BigInteger, used in evaluation of aggregates.
CollectionContainsMethodEvaluator	Evaluator for the method "{collExpr}.contains(elemExpr)".
ConcatFunctionEvaluator	Evaluator for the function CONCAT(strExpr1, strExpr2).
ContainerIsEmptyMethodEvaluator	Evaluator for the method "{contExpr}.isEmpty()".
ContainerSizeMethodEvaluator	Evaluator for the method "{contExpr}.size()".
CurrentDateFunctionEvaluator	Evaluator for the function CURRENT_DATE().
CurrentTimeFunctionEvaluator	Evaluator for the function CURRENT_TIME().
CurrentTimestampFunctionEvaluator	Evaluator for the function CURRENT_TIMESTAMP().
DateAggregateExpression	Expression representing a "java.util.Date" (and subclasses), used in evaluation of aggregates.
DateGetDayMethodEvaluator	Evaluator for the method "{dateExpr}.getDay()".
DateGetHoursMethodEvaluator	Evaluator for the method "{dateExpr}.getHours()".
DateGetMinutesMethodEvaluator	Evaluator for the method "{dateExpr}.getMinutes()".
DateGetMonthMethodEvaluator	Evaluator for the method "{dateExpr}.getMonth()".
DateGetSecondsMethodEvaluator	Evaluator for the method "{dateExpr}.getSeconds()".
DateGetTimeMethodEvaluator	Evaluator for the method "{dateExpr}.getTime()".
DateGetYearMethodEvaluator	Evaluator for the method "{dateExpr}.getYear()".
DoubleAggregateExpression	Expression representing a Double, used in evaluation of aggregates.
FloatAggregateExpression	Expression representing a Float, used in evaluation of aggregates.
InMemoryExpressionEvaluator	Class providing evaluation of java "string-based" queries in-memory.
IntegerAggregateExpression	Expression representing an Integer, used in evaluation of aggregates.
JDOHelperGetObjectIdFunctionEvaluator	Evaluator for the function JDOHelper.getObjectId(obj).
JDOHelperGetVersionFunctionEvaluator	Evaluator for the function JDOHelper.getVersion(obj).
LengthFunctionEvaluator	Evaluator for the function LENGTH(stringExpr).
LocateFunctionEvaluator	Evaluator for the function LOCATE(strExpr1, strExpr2, pos).
LongAggregateExpression	Expression representing a Long, used in evaluation of aggregates.
LowerFunctionEvaluator	Evaluator for the function LOWER(stringExpr).
MapContainsKeyMethodEvaluator	Evaluator for the method "{mapExpr}.containsKey(keyExpr)".
MapContainsValueMethodEvaluator	Evaluator for the method "{mapExpr}.containsValue(valueExpr)".
MapGetMethodEvaluator	Evaluator for the method "{mapExpr}.get(keyExpr)".
ModFunctionEvaluator	Evaluator for the function MOD(numExpr1, numExpr2).
NumericAggregateExpression
SetExpression	Expression for the aggregation of a set of object values.
ShortAggregateExpression	Expression representing an Short, used in evaluation of aggregates.
SizeFunctionEvaluator	Evaluator for the function SIZE(collExpr).
SqrtFunctionEvaluator	Evaluator for the function SQRT(numExpr).
StringAggregateExpression
StringEndsWithMethodEvaluator	Evaluator for the method "{stringExpr}.endsWith(strExpr)".
StringIndexOfMethodEvaluator	Evaluator for the method "{stringExpr}.indexOf(strExpr[,numExpr])".
StringLengthMethodEvaluator	Evaluator for the method "{stringExpr}.length()".
StringMatchesMethodEvaluator	Evaluator for the method "{stringExpr}.toLowerCase()".
StringStartsWithMethodEvaluator	Evaluator for the method "{stringExpr}.startsWith(strExpr [,pos])".
StringSubstringMethodEvaluator	Evaluator for the method "{stringExpr}.substring(stringExpr [,pos])".
StringToLowerCaseMethodEvaluator	Evaluator for the method "{stringExpr}.toLowerCase()".
StringToUpperCaseMethodEvaluator	Evaluator for the method "{stringExpr}.toUpperCase()".
StringTrimMethodEvaluator	Evaluator for the method "{stringExpr}.trim()".
SubstringFunctionEvaluator	Evaluator for the function SUBSTRING(str, num1, num2).
TrimFunctionEvaluator	Evaluator for the function TRIM(strExpr).
UpperFunctionEvaluator	Evaluator for the function UPPER(stringExpr).

Package org.datanucleus.query.evaluator.memory Description

Package providing the evaluation of in-memory queries. Utilised by the classes in org.datanucleus.query.evaluator

Contains a series of classes implementing org.datanucleus.query.evaluator.memory.InvocationEvaluator providing support for particular functions (in JDOQL/JPQL).

Contains a series of classes implementing org.datanucleus.query.evaluator.memory.AggregateExpression providing support for aggregation of different java types.