Package org.h2.mode
Class FunctionsDB2Derby
java.lang.Object
org.h2.expression.Expression
org.h2.expression.OperationN
org.h2.expression.function.FunctionN
org.h2.mode.ModeFunction
org.h2.mode.FunctionsDB2Derby
- All Implemented Interfaces:
ExpressionWithVariableParameters
,NamedExpression
,HasSQL
,Typed
Functions for
Mode.ModeEnum.DB2
and
Mode.ModeEnum.Derby
compatibility modes.-
Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final HashMap
<String, FunctionInfo> private static final int
private static final TypeInfo
Fields inherited from class org.h2.mode.ModeFunction
info, VAR_ARGS
Fields inherited from class org.h2.expression.OperationN
args, argsCount, type
Fields inherited from class org.h2.expression.Expression
AUTO_PARENTHESES, MAP_IN_AGGREGATE, MAP_IN_WINDOW, MAP_INITIAL, WITH_PARENTHESES, WITHOUT_PARENTHESES
Fields inherited from interface org.h2.util.HasSQL
ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic FunctionsDB2Derby
getFunction
(String upperName) Returns mode-specific function for a given name, ornull
.getValue
(SessionLocal session) Return the resulting value for the current row.optimize
(SessionLocal session) Try to optimize the expression.Methods inherited from class org.h2.mode.ModeFunction
checkParameterCount, doneWithParameters, getArgumentsValues, getFunction, getName, getNullOrValue, isEverything, optimizeArguments
Methods inherited from class org.h2.expression.function.FunctionN
getUnenclosedSQL, getValue
Methods inherited from class org.h2.expression.OperationN
addParameter, getCost, getSubexpression, getSubexpressionCount, getType, mapColumns, optimizeArguments, setEvaluatable, updateAggregate
Methods inherited from class org.h2.expression.Expression
addFilterConditions, createIndexConditions, getAlias, getBooleanValue, getColumnName, getColumnNameForView, getEnclosedSQL, getNonAliasExpression, getNotIfPossible, getNullable, getSchemaName, getSQL, getSQL, getSQL, getSQL, getTableAlias, getTableName, getWhenSQL, getWhenValue, isConstant, isIdentity, isNullConstant, isValueSet, isWhenConditionOperand, needParentheses, optimizeCondition, toString, writeExpressions, writeExpressions
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.h2.util.HasSQL
getTraceSQL
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Field Details
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IDENTITY_VAL_LOCAL
private static final int IDENTITY_VAL_LOCAL- See Also:
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FUNCTIONS
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IDENTITY_VAL_LOCAL_TYPE
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Constructor Details
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FunctionsDB2Derby
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Method Details
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getFunction
Returns mode-specific function for a given name, ornull
.- Parameters:
upperName
- the upper-case name of a function- Returns:
- the function with specified name or
null
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getValue
Description copied from class:Expression
Return the resulting value for the current row. -
optimize
Description copied from class:Expression
Try to optimize the expression.- Specified by:
optimize
in classExpression
- Parameters:
session
- the session- Returns:
- the optimized expression
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