Package org.h2.expression.function
Class DBObjectFunction
- 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.expression.function.DBObjectFunction
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- All Implemented Interfaces:
ExpressionWithVariableParameters
,NamedExpression
,HasSQL
,Typed
public final class DBObjectFunction extends FunctionN
DB_OBJECT_ID() and DB_OBJECT_SQL() functions.
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Field Summary
Fields Modifier and Type Field Description static int
DB_OBJECT_ID
DB_OBJECT_ID() (non-standard).static int
DB_OBJECT_SQL
DB_OBJECT_SQL() (non-standard).private int
function
private static java.lang.String[]
NAMES
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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 Constructor Description DBObjectFunction(Expression objectType, Expression arg1, Expression arg2, int function)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getName()
Get the name.Value
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.Expression
optimize(SessionLocal session)
Try to optimize the expression.-
Methods inherited from class org.h2.expression.function.FunctionN
getUnenclosedSQL, getValue
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Methods inherited from class org.h2.expression.OperationN
addParameter, doneWithParameters, 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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DB_OBJECT_ID
public static final int DB_OBJECT_ID
DB_OBJECT_ID() (non-standard).- See Also:
- Constant Field Values
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DB_OBJECT_SQL
public static final int DB_OBJECT_SQL
DB_OBJECT_SQL() (non-standard).- See Also:
- Constant Field Values
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NAMES
private static final java.lang.String[] NAMES
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function
private final int function
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Constructor Detail
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DBObjectFunction
public DBObjectFunction(Expression objectType, Expression arg1, Expression arg2, int function)
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Method Detail
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getValue
public Value getValue(SessionLocal session, Value v1, Value v2, Value v3)
Description copied from class:FunctionN
Returns the value of this function.
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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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isEverything
public boolean isEverything(ExpressionVisitor visitor)
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
public java.lang.String getName()
Description copied from interface:NamedExpression
Get the name.- Returns:
- the name in uppercase
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