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

public final Class CurrentDateTimeValueFunction

extends Operation0
implements NamedExpression
Class Inheritance
All Implemented Interfaces
org.h2.expression.function.NamedExpression
Imports
org.h2.engine.SessionLocal, org.h2.expression.ExpressionVisitor, .Operation0, org.h2.value.TypeInfo, .Value, .ValueTime, .ValueTimestamp
Current datetime value function.

Field Summary

Modifier and TypeField and Description
public static final int
CURRENT_DATE

The function "CURRENT_DATE"

public static final int
CURRENT_TIME

The function "CURRENT_TIME"

public static final int
CURRENT_TIMESTAMP

The function "CURRENT_TIMESTAMP"

private final int
function

public static final int
LOCALTIME

The function "LOCALTIME"

public static final int
LOCALTIMESTAMP

The function "LOCALTIMESTAMP"

private static final String[]
NAMES

private final int
scale

private final TypeInfo
type

private static final int[]
TYPES

Constructor Summary

AccessConstructor and Description
public
CurrentDateTimeValueFunction(int function, int scale)

Method Summary

Modifier and TypeMethod and Description
public int
getCost()

Implements abstract org.h2.expression.Expression.getCost.

Estimate the cost to process the expression.

public static String

Returns:

the name
getName(int
the function id
function)

Get the name for this function id.

public String
getName()

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

Get the name.

public TypeInfo
getType()

Implements abstract org.h2.expression.Expression.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 boolean
isEverything(ExpressionVisitor
the visitor
visitor)

Implements abstract org.h2.expression.Expression.isEverything.

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

Inherited from org.h2.expression.Operation0:
mapColumnsoptimizesetEvaluatableupdateAggregate

Field Detail

CURRENT_DATEback to summary
public static final int CURRENT_DATE

The function "CURRENT_DATE"

CURRENT_TIMEback to summary
public static final int CURRENT_TIME

The function "CURRENT_TIME"

CURRENT_TIMESTAMPback to summary
public static final int CURRENT_TIMESTAMP

The function "CURRENT_TIMESTAMP"

functionback to summary
private final int function
LOCALTIMEback to summary
public static final int LOCALTIME

The function "LOCALTIME"

LOCALTIMESTAMPback to summary
public static final int LOCALTIMESTAMP

The function "LOCALTIMESTAMP"

NAMESback to summary
private static final String[] NAMES
scaleback to summary
private final int scale
typeback to summary
private final TypeInfo type
TYPESback to summary
private static final int[] TYPES

Constructor Detail

CurrentDateTimeValueFunctionback to summary
public CurrentDateTimeValueFunction(int function, int scale)

Method Detail

getCostback to summary
public int getCost()

Implements abstract org.h2.expression.Expression.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
getNameback to summary
public static String getName(int function)

Get the name for this function id.

Parameters
function:int

the function id

Returns:String

the name

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
getTypeback to summary
public TypeInfo getType()

Implements abstract org.h2.expression.Expression.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
isEverythingback to summary
public boolean isEverything(ExpressionVisitor visitor)

Implements abstract org.h2.expression.Expression.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