be.SIRAPRISE.typeimplementations

Interface OperatorImplementation_V0104

All Known Subinterfaces:

AggregationOperatorImplementation, IntervalOperatorImplementation, OperatorImplementation_V0105

All Known Implementing Classes:

ABS_BIGINT, ABS_FLOAT, ABS_INT, ABS_LONG, ABS_SCALEDNUMBER, ACOS_FLOAT, ACOSEC_FLOAT, ACOTAN_FLOAT, AND_BOOLEAN_BOOLEAN, ASEC_FLOAT, ASIN_FLOAT, ATAN_FLOAT, BEGINSWITH_NAME_NAME, BEGINSWITH_STRING_STRING, BinaryMaxOperatorImplementation, BinaryMinOperatorImplementation, BitPatternComparisonOperatorImplementation, CEIL_BIGINT_BIGINT, CEIL_INT_INT, CEIL_LONG_LONG, ChooseOperatorImplementation, CONCAT_STRING_STRING, CONTAINSR_RELATION_RELATION, CONTAINSRUSING_RELATION_RELATION, CONTAINST_RELATION_TUPLE, CONTAINSTUSING_RELATION_TUPLE, COS_ANGLE, COSEC_ANGLE, COTAN_ANGLE, DATESHIFT_DATE_INT_INT_INT, DIV_BIGINT_BIGINT, DIV_FLOAT_FLOAT, DIV_INT_INT, DIV_LONG_LONG, DIV_SCALEDNUMBER_SCALEDNUMBER, ENDSWITH_NAME_NAME, ENDSWITH_STRING_STRING, EQ_BOOLEAN_BOOLEAN, EQ_RELATION_RELATION, EQ_TUPLE_TUPLE, ESCAPE_STRING, EXP_FLOAT, EXP_FLOAT_FLOAT, FIRSTDATE, FIRSTFLOAT, FIRSTINT, FIRSTLONG, FIRSTTIMEOFDAY, FLOOR_BIGINT_BIGINT, FLOOR_INT_INT, FLOOR_LONG_LONG, GreaterOrEqualOperatorImplementation, GROUP_RELATION, GT_ANGLE_ANGLE, GT_BIGINT_BIGINT, GT_DATE_DATE, GT_DECIMAL_DECIMAL, GT_FLOAT_FLOAT, GT_FOO_FOO, GT_INT_INT, GT_LONG_LONG, GT_SCALEDNUMBER_SCALEDNUMBER, GT_TIMEOFDAY_TIMEOFDAY, INTERSECT_RELATION_RELATION, INTERSECTUSING_RELATION_RELATION, IntervalAfterOperatorImplementation, IntervalBeforeOperatorImplementation, IntervalBeginsOperatorImplementation, IntervalContainsOperatorImplementation, IntervalContainsPointOperatorImplementation, IntervalEndPointOfOperatorImplementation, IntervalEndsOperatorImplementation, IntervalGapBetweenOperatorImplementation, IntervalIntersectOperatorImplementation, IntervalIsEmptyOperatorImplementation, IntervalIsInfiniteOperatorImplementation, IntervalIsLowerBoundedOperatorImplementation, IntervalIsUpperBoundedOperatorImplementation, IntervalMeetsOperatorImplementation, IntervalMergesOperatorImplementation, IntervalMinusOperatorImplementation, IntervalOverlapsOperatorImplementation, IntervalSpanOperatorImplementation, IntervalSplitByOperatorImplementation, IntervalSplitsOperatorImplementation, IntervalStartPointOfOperatorImplementation, IntervalUnionOperatorImplementation, IntervalWithinOperatorImplementation, IsSubTypeOperatorImplementation, JOIN_RELATION_RELATION, JOINUSING_RELATION_RELATION, LASTDATE, LASTFLOAT, LASTINT, LASTLONG, LASTTIMEOFDAY, LENGTH_BITS, LENGTH_FILENAME, LENGTH_INTINTERVAL, LENGTH_LONGINTERVAL, LENGTH_NAME, LENGTH_RELATION, LENGTH_STRING, LessOrEqualOperatorImplementation, LessThanOperatorImplementation, LN_FLOAT, LOWERCASE_STRING, LUID, MATCHES_STRING_STRING, MOD_BIGINT_BIGINT, MOD_INT_INT, MOD_LONG_LONG, MULT_BIGINT_BIGINT, MULT_FLOAT_FLOAT, MULT_INT_INT, MULT_LONG_LONG, MULT_SCALEDNUMBER_SCALEDNUMBER, NEXTDATE_DATE, NEXTINT_INT, NEXTLONG_LONG, NOT_BOOLEAN, OR_BOOLEAN_BOOLEAN, PI, PLUS_AVERAGE_AVERAGE, PLUS_BIGINT_BIGINT, PLUS_DECIMAL_DECIMAL, PLUS_FLOAT_FLOAT, PLUS_INT_INT, PLUS_LONG_LONG, PLUS_SCALEDNUMBER_SCALEDNUMBER, PLUS_TIMEOFDAY_TIMEOFDAY, PRIORDATE_DATE, PRIORINT_INT, PRIORLONG_LONG, PROJECT_RELATION, RENAME_RELATION, ROUND_FLOAT_FLOAT, ROUND_SCALEDNUMBER_INT, ScalarEqualityOperatorImplementation, SEC_ANGLE, SIN_ANGLE, SQRT_FLOAT, SUB_BIGINT_BIGINT, SUB_FLOAT_FLOAT, SUB_INT_INT, SUB_LONG_LONG, SUB_SCALEDNUMBER_SCALEDNUMBER, SUB_TIMEOFDAY_TIMEOFDAY, SUBSTR_STRING_INT, SUBSTR_STRING_INT_INT, TAN_ANGLE, TCLOSE_RELATION, THE_OperatorImplementation, TOBIGINT_INT, TOBIGINT_LONG, TOFLOAT_INT, TOFLOAT_LONG, TOINT_LONG, TOLONG_INT, TOSCALEDNUMBER_BIGINT, TOSCALEDNUMBER_INT, TOSCALEDNUMBER_LONG, TRUNC_SCALEDNUMBER_INT, UNESCAPE_STRING, UNGROUP_RELATION, UNION_RELATION_RELATION, UNIONUSING_RELATION_RELATION, UNPACK_RELATION, UPPERCASE_STRING, XMINUS_RELATION_RELATION, XMINUSUSING_RELATION_RELATION, XOR_BOOLEAN_BOOLEAN

public interface OperatorImplementation_V0104

Defines the methods that the implementation class for a SIRA_PRISE operator must provide. The implementation class for an operator must be the name of the operator, followed by the type names of the respective arguments, with all those names separated by a single underscore '_'. E.g. the implementation class for an exponentiation operator EXP that takes two arguments of type FLOAT, must be named EXP_FLOAT_FLOAT.

Author:

Erwin Smout

Method Summary

Modifier and Type	Method and Description
ValueBuffer	executeOperator(java.util.LinkedList<ValueBuffer> args) Performs the actual logic of the operator.
java.lang.String[]	getArgumentTypeNames() Gets the list of names of types of the needed argument values
java.lang.String	getReturnTypeName() Deprecated. - replace with getReturnTypeDeclaration().getReturnTypeNameIdentifier()
java.lang.String	getSignature() Gets the name of the operator implemented by this implementation object
boolean	isDeterministic() Tells whether the operator is deterministic with respect to the arguments of its invocations.

Method Detail

getSignature

java.lang.String getSignature()

Gets the name of the operator implemented by this implementation object

Returns:

the name of the operator implemented by this implementation object

executeOperator

ValueBuffer executeOperator(java.util.LinkedList<ValueBuffer> args)

Performs the actual logic of the operator.

Parameters:

args - the argument list. The list must hold as many ValueBuffer objects as there are arguments to the operator, and each ValueBuffer object holds a value for some argument to the operator. ValueBuffer objects on the list must appear in the same order as the operator argument declarations. Implementations have the option, but are not required, to do a check the conformance of the argument list (the argument count, notably) to the operator signature.

Returns:

A ValueBuffer object holding the result value of the operator execution in internal format.

getArgumentTypeNames

java.lang.String[] getArgumentTypeNames()

Gets the list of names of types of the needed argument values

Returns:

The names of the argument types

getReturnTypeName

@Deprecated
java.lang.String getReturnTypeName()

Deprecated. - replace with getReturnTypeDeclaration().getReturnTypeNameIdentifier()

Gets the name of the type of the return value

Returns:

the name of the type of the return value

isDeterministic

boolean isDeterministic()

Tells whether the operator is deterministic with respect to the arguments of its invocations. An operator is deterministic if and only if for any two distinct invocations, if all the argument values are the same, then the result value returned will also be the same. An example of a nondeterministic operators is RANDOM().

Returns:

true if the operator is deterministic.