Package org.h2.expression.function
Class DBObjectFunction
java.lang.Object
org.h2.expression.Expression
org.h2.expression.OperationN
org.h2.expression.function.FunctionN
org.h2.expression.function.DBObjectFunction
- All Implemented Interfaces:
ExpressionWithVariableParameters
,NamedExpression
,HasSQL
,Typed
DB_OBJECT_ID() and DB_OBJECT_SQL() functions.
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final int
DB_OBJECT_ID() (non-standard).static final int
DB_OBJECT_SQL() (non-standard).private final int
private static final String[]
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
ConstructorsConstructorDescriptionDBObjectFunction
(Expression objectType, Expression arg1, Expression arg2, int function) -
Method Summary
Modifier and TypeMethodDescriptiongetName()
Get the name.getValue
(SessionLocal session, Value v1, Value v2, Value v3) Returns the value of this function.boolean
isEverything
(ExpressionVisitor visitor) Check if this expression and all sub-expressions can fulfill a criteria.optimize
(SessionLocal session) Try to optimize the expression.Methods inherited from class org.h2.expression.function.FunctionN
getUnenclosedSQL, getValue
Methods inherited from class org.h2.expression.OperationN
addParameter, doneWithParameters, 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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DB_OBJECT_ID
public static final int DB_OBJECT_IDDB_OBJECT_ID() (non-standard).- See Also:
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DB_OBJECT_SQL
public static final int DB_OBJECT_SQLDB_OBJECT_SQL() (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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DBObjectFunction
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Method Details
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getValue
Description copied from class:FunctionN
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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isEverything
Description copied from class:Expression
Check if this expression and all sub-expressions can fulfill a criteria. If any part returns false, the result is false.- Overrides:
isEverything
in classOperationN
- Parameters:
visitor
- the visitor- Returns:
- if the criteria can be fulfilled
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getName
Description copied from interface:NamedExpression
Get the name.- Returns:
- the name in uppercase
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