Package org.datanucleus.query.evaluator.memory

Package providing the evaluation of in-memory queries.

See: Description

Interface Summary

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

Class Summary

Class	Description
AbsFunctionEvaluator	Evaluator for the function ABS(numExpr).
AggregateExpression
ArcCosineFunctionEvaluator	Evaluator for the function ACOS(numExpr).
ArcSineFunctionEvaluator	Evaluator for the function ASIN(numExpr).
ArcTangentFunctionEvaluator	Evaluator for the function ATAN(numExpr).
ArrayContainsMethodEvaluator	Evaluator for the method "{arrayExpr}.contains(elemExpr)".
ArraySizeMethodEvaluator	Evaluator for the method "{arrayExpr}.size()".
BigDecimalAggregateExpression	Expression representing a BigDecimal, used in evaluation of aggregates.
BigIntegerAggregateExpression	Expression representing a BigInteger, used in evaluation of aggregates.
CeilFunctionEvaluator	Evaluator for the function CEIL(numExpr).
CoalesceFunctionEvaluator	Evaluator for the function COALESCE(numExpr[, numExpr2[, numExpr3] etc]).
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()".
CosineFunctionEvaluator	Evaluator for the function COS(numExpr).
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.
EnumMatchesMethodEvaluator	Evaluator for the method "{enumExpr}.matches(expr)".
EnumOrdinalMethodEvaluator	Evaluator for the method "{enumExpr}.ordinal()".
EnumToStringMethodEvaluator	Evaluator for the method "{enumExpr}.toString()".
ExpFunctionEvaluator	Evaluator for the function EXP(numExpr).
FloatAggregateExpression	Expression representing a Float, used in evaluation of aggregates.
FloorFunctionEvaluator	Evaluator for the function FLOOR(numExpr).
GetClassMethodEvaluator	Evaluator for the function getClass(obj).
InMemoryExpressionEvaluator	Class providing evaluation of java "string-based" queries in-memory.
InMemoryFailure	Class representing a failure in the in-memory evaluation process.
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).
ListGetMethodEvaluator	Evaluator for the method "{listExpr}.get(idxExpr)".
LocateFunctionEvaluator	Evaluator for the function LOCATE(strExpr1, strExpr2, pos).
LogFunctionEvaluator	Evaluator for the function LOG(numExpr).
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)".
MathFunctionEvaluator	Evaluator for mathematical function XYZ(numExpr).
ModFunctionEvaluator	Evaluator for the function MOD(numExpr1, numExpr2).
NullIfFunctionEvaluator	Evaluator for the function NULLIF(numExpr, numExpr2).
NumericAggregateExpression
SetExpression	Expression for the aggregation of a set of object values.
ShortAggregateExpression	Expression representing a Short, used in evaluation of aggregates.
SineFunctionEvaluator	Evaluator for the function SIN(numExpr).
SizeFunctionEvaluator	Evaluator for the function SIZE(collExpr).
SqrtFunctionEvaluator	Evaluator for the function SQRT(numExpr).
StringAggregateExpression	Expression representing a String, used in evaluation of aggregates.
StringCharAtMethodEvaluator	Evaluator for the method "{stringExpr}.charAt(numExpr)".
StringEndsWithMethodEvaluator	Evaluator for the method "{stringExpr}.endsWith(strExpr)".
StringEqualsIgnoreCaseMethodEvaluator	Evaluator for the method "{stringExpr}.equalsIgnoreCase(strExpr)".
StringEqualsMethodEvaluator	Evaluator for the method "{stringExpr}.equals(strExpr)".
StringIndexOfMethodEvaluator	Evaluator for the method "{stringExpr}.indexOf(strExpr [,numExpr])".
StringLengthMethodEvaluator	Evaluator for the method "{stringExpr}.length()".
StringMatchesMethodEvaluator	Evaluator for the method "{stringExpr}.matches(expr)".
StringStartsWithMethodEvaluator	Evaluator for the method "{stringExpr}.startsWith(strExpr [,pos])".
StringSubstringMethodEvaluator	Evaluator for the method "{stringExpr}.substring(posStart [,posEnd])".
StringToLowerCaseMethodEvaluator	Evaluator for the method "{stringExpr}.toLowerCase()".
StringToUpperCaseMethodEvaluator	Evaluator for the method "{stringExpr}.toUpperCase()".
StringTrimLeftMethodEvaluator	Evaluator for the method "{stringExpr}.trimLeft([trimChar])".
StringTrimMethodEvaluator	Evaluator for the method "{stringExpr}.trim()".
StringTrimRightMethodEvaluator	Evaluator for the method "{stringExpr}.trimRight([trimChar])".
SubstringFunctionEvaluator	Evaluator for the function SUBSTRING(str, num1, num2).
TangentFunctionEvaluator	Evaluator for the function TAN(numExpr).
TrimFunctionEvaluator	Evaluator for the function TRIM(strExpr).
UpperFunctionEvaluator	Evaluator for the function UPPER(stringExpr).

Exception Summary

Exception	Description
VariableNotSetException	Exception representing a variable not having its value currently set in the query.

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.