Top Description Fields Constructors Methods
org.h2.expression.function

public final Class SessionControlFunction

extends Function1
Class Inheritance
Imports
org.h2.command.Command, org.h2.engine.SessionLocal, org.h2.expression.Expression, .ExpressionVisitor, org.h2.message.DbException, org.h2.value.TypeInfo, .Value, .ValueBoolean, .ValueNull
An ABORT_SESSION() or CANCEL_SESSION() function.

Field Summary

Modifier and TypeField and Description
public static final int
ABORT_SESSION

ABORT_SESSION().

public static final int
CANCEL_SESSION

CANCEL_SESSION().

private final int
function

private static final String[]
NAMES

Constructor Summary

AccessConstructor and Description
public
SessionControlFunction(Expression arg, int function)

Method Summary

Modifier and TypeMethod and Description
public String
getName()

Implements org.h2.expression.function.NamedExpression.getName.

Get the name.

public Value
getValue(SessionLocal
the session
session)

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

Return the resulting value for the current row.

public boolean
isEverything(ExpressionVisitor
the visitor
visitor)

Overrides org.h2.expression.Operation1.isEverything.

Check if this expression and all sub-expressions can fulfill a criteria.

public Expression
optimize(SessionLocal
the session
session)

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

Try to optimize the expression.

Inherited from org.h2.expression.function.Function1:
getUnenclosedSQL

Field Detail

ABORT_SESSIONback to summary
public static final int ABORT_SESSION

ABORT_SESSION().

CANCEL_SESSIONback to summary
public static final int CANCEL_SESSION

CANCEL_SESSION().

functionback to summary
private final int function
NAMESback to summary
private static final String[] NAMES

Constructor Detail

SessionControlFunctionback to summary
public SessionControlFunction(Expression arg, int function)

Method Detail

getNameback to summary
public String getName()

Implements org.h2.expression.function.NamedExpression.getName.

Doc from org.h2.expression.function.NamedExpression.getName.

Get the name.

Returns:String

the name in uppercase

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
isEverythingback to summary
public boolean isEverything(ExpressionVisitor visitor)

Overrides org.h2.expression.Operation1.isEverything.

Doc from org.h2.expression.Expression.isEverything.

Check if this expression and all sub-expressions can fulfill a criteria. If any part returns false, the result is false.

Parameters
visitor:ExpressionVisitor

the visitor

Returns:boolean

if the criteria can be fulfilled

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