Top Description Fields Constructors Methods
org.h2.mode

public final Class Regclass

extends Operation1
Class Inheritance
Imports
org.h2.api.ErrorCode, org.h2.engine.SessionLocal, org.h2.expression.Expression, .Operation1, .ValueExpression, org.h2.index.Index, org.h2.message.DbException, org.h2.schema.Schema, org.h2.table.Table, org.h2.value.TypeInfo, .Value, .ValueInteger, .ValueNull
A ::regclass expression.

Field Summary

Inherited from org.h2.expression.Operation1:
argtype

Constructor Summary

AccessConstructor and Description
public
Regclass(Expression arg)

Method Summary

Modifier and TypeMethod and Description
public int
getCost()

Overrides org.h2.expression.Operation1.getCost.

Estimate the cost to process the expression.

public TypeInfo
getType()

Overrides org.h2.expression.Operation1.getType.

Implements org.h2.value.Typed.getType.

Returns the data type.

public StringBuilder
getUnenclosedSQL(StringBuilder
string builder
builder, int
formatting flags
sqlFlags)

Implements abstract org.h2.expression.Expression.getUnenclosedSQL.

Get the SQL statement of this expression.

public Value
getValue(SessionLocal
the session
session)

Implements abstract org.h2.expression.Expression.getValue.

Return the resulting value for the current row.

public Expression
optimize(SessionLocal
the session
session)

Implements abstract org.h2.expression.Expression.optimize.

Try to optimize the expression.

Inherited from org.h2.expression.Operation1:
getSubexpressiongetSubexpressionCountisEverythingmapColumnssetEvaluatableupdateAggregate

Constructor Detail

Regclassback to summary
public Regclass(Expression arg)

Method Detail

getCostback to summary
public int getCost()

Overrides org.h2.expression.Operation1.getCost.

Doc from org.h2.expression.Expression.getCost.

Estimate the cost to process the expression. Used when optimizing the query, to calculate the query plan with the lowest estimated cost.

Returns:int

the estimated cost

Annotations
@Override
getTypeback to summary
public TypeInfo getType()

Overrides org.h2.expression.Operation1.getType.

Implements org.h2.value.Typed.getType.

Doc from org.h2.expression.Expression.getType.

Returns the data type. The data type may be unknown before the optimization phase.

Returns:TypeInfo

the data type

Annotations
@Override
getUnenclosedSQLback to summary
public StringBuilder getUnenclosedSQL(StringBuilder builder, int sqlFlags)

Implements abstract org.h2.expression.Expression.getUnenclosedSQL.

Doc from org.h2.expression.Expression.getUnenclosedSQL.

Get the SQL statement of this expression. This may not always be the original SQL statement, especially after optimization. Enclosing '(' and ')' are never appended.

Parameters
builder:StringBuilder

string builder

sqlFlags:int

formatting flags

Returns:StringBuilder

the specified string builder

Annotations
@Override
getValueback to summary
public Value getValue(SessionLocal session)

Implements abstract org.h2.expression.Expression.getValue.

Doc from org.h2.expression.Expression.getValue.

Return the resulting value for the current row.

Parameters
session:SessionLocal

the session

Returns:Value

the result

Annotations
@Override
optimizeback to summary
public Expression optimize(SessionLocal session)

Implements abstract org.h2.expression.Expression.optimize.

Doc from org.h2.expression.Expression.optimize.

Try to optimize the expression.

Parameters
session:SessionLocal

the session

Returns:Expression

the optimized expression

Annotations
@Override