Package org.h2.expression.function
Class StringFunction2
java.lang.Object
org.h2.expression.Expression
org.h2.expression.Operation2
org.h2.expression.function.Function2
org.h2.expression.function.StringFunction2
- All Implemented Interfaces:
NamedExpression
,HasSQL
,Typed
A string function with two arguments.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final int
static final int
LEFT() (non-standard).private static final String[]
static final int
REPEAT() (non-standard).static final int
RIGHT() (non-standard).Fields inherited from class org.h2.expression.Operation2
left, right, 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 TypeMethodDescriptiongetName()
Get the name.getValue
(SessionLocal session, Value v1, Value v2) Returns the value of this function.optimize
(SessionLocal session) Try to optimize the expression.Methods inherited from class org.h2.expression.function.Function2
getUnenclosedSQL, getValue
Methods inherited from class org.h2.expression.Operation2
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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LEFT
public static final int LEFTLEFT() (non-standard).- See Also:
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RIGHT
public static final int RIGHTRIGHT() (non-standard).- See Also:
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REPEAT
public static final int REPEATREPEAT() (non-standard).- See Also:
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NAMES
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function
private final int function
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Constructor Details
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StringFunction2
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Method Details
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getValue
Description copied from class:Function2
Returns the value of this function. -
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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