Package org.h2.expression.function
Class DayMonthNameFunction
java.lang.Object
org.h2.expression.Expression
org.h2.expression.Operation1
org.h2.expression.function.Function1
org.h2.expression.function.DayMonthNameFunction
- All Implemented Interfaces:
NamedExpression
,HasSQL
,Typed
A DAYNAME() or MONTHNAME() function.
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final int
DAYNAME() (non-standard).private final int
static final int
MONTHNAME() (non-standard).private static String[][]
English names of months and week days.private static final String[]
Fields inherited from class org.h2.expression.Operation1
arg, 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 TypeMethodDescriptionprivate static String[]
getMonthsAndWeeks
(int field) Return names of month or weeks.getName()
Get the name.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.expression.function.Function1
getUnenclosedSQL
Methods inherited from class org.h2.expression.Operation1
getCost, getSubexpression, getSubexpressionCount, getType, isEverything, mapColumns, 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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DAYNAME
public static final int DAYNAMEDAYNAME() (non-standard).- See Also:
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MONTHNAME
public static final int MONTHNAMEMONTHNAME() (non-standard).- See Also:
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NAMES
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MONTHS_AND_WEEKS
English names of months and week days. -
function
private final int function
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Constructor Details
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DayMonthNameFunction
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Method Details
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getValue
Description copied from class:Expression
Return the resulting value for the current row.- Specified by:
getValue
in classExpression
- Parameters:
session
- the session- Returns:
- the result
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getMonthsAndWeeks
Return names of month or weeks.- Parameters:
field
- 0 for months, 1 for weekdays- Returns:
- names of month or weeks
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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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getName
Description copied from interface:NamedExpression
Get the name.- Returns:
- the name in uppercase
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