Package org.h2.mode
Class FunctionsOracle
- java.lang.Object
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- org.h2.expression.Expression
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- org.h2.expression.OperationN
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- org.h2.expression.function.FunctionN
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- org.h2.mode.ModeFunction
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- org.h2.mode.FunctionsOracle
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- All Implemented Interfaces:
ExpressionWithVariableParameters
,NamedExpression
,HasSQL
,Typed
public final class FunctionsOracle extends ModeFunction
Functions forMode.ModeEnum.Oracle
compatibility mode.
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Field Summary
Fields Modifier and Type Field Description private static int
ADD_MONTHS
private static java.util.HashMap<java.lang.String,FunctionInfo>
FUNCTIONS
private static int
SYS_GUID
private static int
TO_DATE
private static int
TO_TIMESTAMP
private static int
TO_TIMESTAMP_TZ
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Fields inherited from class org.h2.mode.ModeFunction
info, VAR_ARGS
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Fields inherited from class org.h2.expression.OperationN
args, argsCount, type
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Fields inherited from class org.h2.expression.Expression
AUTO_PARENTHESES, MAP_IN_AGGREGATE, MAP_IN_WINDOW, MAP_INITIAL, WITH_PARENTHESES, WITHOUT_PARENTHESES
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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 Modifier Constructor Description private
FunctionsOracle(FunctionInfo info)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
checkParameterCount(int len)
Check if the parameter count is correct.static FunctionsOracle
getFunction(java.lang.String upperName)
Returns mode-specific function for a given name, ornull
.Value
getValue(SessionLocal session)
Return the resulting value for the current row.Expression
optimize(SessionLocal session)
Try to optimize the expression.-
Methods inherited from class org.h2.mode.ModeFunction
doneWithParameters, getArgumentsValues, getFunction, getName, getNullOrValue, isEverything, optimizeArguments
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Methods inherited from class org.h2.expression.function.FunctionN
getUnenclosedSQL, getValue
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Methods inherited from class org.h2.expression.OperationN
addParameter, getCost, getSubexpression, getSubexpressionCount, getType, mapColumns, optimizeArguments, setEvaluatable, updateAggregate
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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
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.h2.util.HasSQL
getTraceSQL
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Field Detail
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ADD_MONTHS
private static final int ADD_MONTHS
- See Also:
- Constant Field Values
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SYS_GUID
private static final int SYS_GUID
- See Also:
- Constant Field Values
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TO_DATE
private static final int TO_DATE
- See Also:
- Constant Field Values
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TO_TIMESTAMP
private static final int TO_TIMESTAMP
- See Also:
- Constant Field Values
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TO_TIMESTAMP_TZ
private static final int TO_TIMESTAMP_TZ
- See Also:
- Constant Field Values
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FUNCTIONS
private static final java.util.HashMap<java.lang.String,FunctionInfo> FUNCTIONS
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Constructor Detail
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FunctionsOracle
private FunctionsOracle(FunctionInfo info)
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Method Detail
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getFunction
public static FunctionsOracle getFunction(java.lang.String upperName)
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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checkParameterCount
protected void checkParameterCount(int len)
Description copied from class:ModeFunction
Check if the parameter count is correct.- Overrides:
checkParameterCount
in classModeFunction
- Parameters:
len
- the number of parameters set
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optimize
public Expression optimize(SessionLocal session)
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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getValue
public Value getValue(SessionLocal session)
Description copied from class:Expression
Return the resulting value for the current row.
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