Package org.datanucleus.query.inmemory

Package providing the evaluation of queries using an in-memory process.

See: Description

Interface Summary

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

Class Summary

Class	Description
AbsFunction	Evaluator for the function ABS(numExpr).
AggregateExpression
ArcCosineFunction	Evaluator for the function ACOS(numExpr).
ArcSineFunction	Evaluator for the function ASIN(numExpr).
ArcTangentFunction	Evaluator for the function ATAN(numExpr).
ArrayContainsMethod	Evaluator for the method "{arrayExpr}.contains(elemExpr)".
ArraySizeMethod	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.
CeilFunction	Evaluator for the function CEIL(numExpr).
CoalesceFunction	Evaluator for the function COALESCE(numExpr[, numExpr2[, numExpr3] etc]).
CollectionContainsMethod	Evaluator for the method "{collExpr}.contains(elemExpr)".
ConcatFunction	Evaluator for the function CONCAT(strExpr1, strExpr2).
ContainerIsEmptyMethod	Evaluator for the method "{contExpr}.isEmpty()".
ContainerSizeMethod	Evaluator for the method "{contExpr}.size()".
CosineFunction	Evaluator for the function COS(numExpr).
CurrentDateFunction	Evaluator for the function CURRENT_DATE().
CurrentTimeFunction	Evaluator for the function CURRENT_TIME().
CurrentTimestampFunction	Evaluator for the function CURRENT_TIMESTAMP().
DateAggregateExpression	Expression representing a "java.util.Date" (and subclasses), used in evaluation of aggregates.
DateGetDayMethod	Evaluator for the method "{dateExpr}.getDay()".
DateGetHoursMethod	Evaluator for the method "{dateExpr}.getHours()".
DateGetMinutesMethod	Evaluator for the method "{dateExpr}.getMinutes()".
DateGetMonthMethod	Evaluator for the method "{dateExpr}.getMonth()".
DateGetSecondsMethod	Evaluator for the method "{dateExpr}.getSeconds()".
DateGetTimeMethod	Evaluator for the method "{dateExpr}.getTime()".
DateGetYearMethod	Evaluator for the method "{dateExpr}.getYear()".
DegreesFunction	Evaluator for the function DEGREES(numExpr).
DoubleAggregateExpression	Expression representing a Double, used in evaluation of aggregates.
EnumMatchesMethod	Evaluator for the method "{enumExpr}.matches(expr)".
EnumOrdinalMethod	Evaluator for the method "{enumExpr}.ordinal()".
EnumToStringMethod	Evaluator for the method "{enumExpr}.toString()".
ExpFunction	Evaluator for the function EXP(numExpr).
FloatAggregateExpression	Expression representing a Float, used in evaluation of aggregates.
FloorFunction	Evaluator for the function FLOOR(numExpr).
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.
LengthFunction	Evaluator for the function LENGTH(stringExpr).
ListGetMethod	Evaluator for the method "{listExpr}.get(idxExpr)".
LocateFunction	Evaluator for the function LOCATE(strExpr1, strExpr2, pos).
LogFunction	Evaluator for the function LOG(numExpr).
LongAggregateExpression	Expression representing a Long, used in evaluation of aggregates.
LowerFunction	Evaluator for the function LOWER(stringExpr).
MapContainsEntryMethod	Evaluator for the method "{mapExpr}.containsEntry(keyExpr,valueExpr)".
MapContainsKeyMethod	Evaluator for the method "{mapExpr}.containsKey(keyExpr)".
MapContainsValueMethod	Evaluator for the method "{mapExpr}.containsValue(valueExpr)".
MapGetMethod	Evaluator for the method "{mapExpr}.get(keyExpr)".
MathFunction	Evaluator for mathematical function XYZ(numExpr).
ModFunction	Evaluator for the function MOD(numExpr1, numExpr2).
NullIfFunction	Evaluator for the function NULLIF(numExpr, numExpr2).
NumericAggregateExpression
ObjectGetClassMethod	Evaluator for the function getClass(obj).
RadiansFunction	Evaluator for the function RADIANS(numExpr).
SetExpression	Expression for the aggregation of a set of object values.
ShortAggregateExpression	Expression representing a Short, used in evaluation of aggregates.
SineFunction	Evaluator for the function SIN(numExpr).
SizeFunction	Evaluator for the function SIZE(collExpr).
SqrtFunction	Evaluator for the function SQRT(numExpr).
StringAggregateExpression	Expression representing a String, used in evaluation of aggregates.
StringCharAtMethod	Evaluator for the method "{stringExpr}.charAt(numExpr)".
StringConcatMethod	Evaluator for the method "{stringExpr}.concat(extraStr)".
StringEndsWithMethod	Evaluator for the method "{stringExpr}.endsWith(strExpr)".
StringEqualsIgnoreCaseMethod	Evaluator for the method "{stringExpr}.equalsIgnoreCase(strExpr)".
StringEqualsMethod	Evaluator for the method "{stringExpr}.equals(strExpr)".
StringIndexOfMethod	Evaluator for the method "{stringExpr}.indexOf(strExpr [,numExpr])".
StringLengthMethod	Evaluator for the method "{stringExpr}.length()".
StringMatchesMethod	Evaluator for the method "{stringExpr}.matches(expr)".
StringStartsWithMethod	Evaluator for the method "{stringExpr}.startsWith(strExpr [,pos])".
StringSubstringMethod	Evaluator for the method "{stringExpr}.substring(posStart [,posEnd])".
StringToLowerCaseMethod	Evaluator for the method "{stringExpr}.toLowerCase()".
StringToUpperCaseMethod	Evaluator for the method "{stringExpr}.toUpperCase()".
StringTrimLeftMethod	Evaluator for the method "{stringExpr}.trimLeft([trimChar])".
StringTrimMethod	Evaluator for the method "{stringExpr}.trim()".
StringTrimRightMethod	Evaluator for the method "{stringExpr}.trimRight([trimChar])".
SubstringFunction	Evaluator for the function SUBSTRING(str, num1, num2).
TangentFunction	Evaluator for the function TAN(numExpr).
TrimFunction	Evaluator for the function TRIM(strExpr).
UpperFunction	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.inmemory Description

Package providing the evaluation of queries using an in-memory process.

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

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