Module org.tentackle.sql

Package org.tentackle.sql.datatypes

Class LargeStringType

java.lang.Object

org.tentackle.sql.datatypes.AbstractDataType<String>

org.tentackle.sql.datatypes.StringType

org.tentackle.sql.datatypes.LargeStringType

All Implemented Interfaces:

DataType<String>

@Service(DataType.class)
public final class LargeStringType
extends StringType

Datatype for the large variant of String.

Notice that there are two types of strings. This one is for the SQL type CLOB.

Field Summary

Fields inherited from class org.tentackle.sql.datatypes.AbstractDataType

maxLinesInLiteral

Constructor Summary

Constructors

Constructor	Description
LargeStringType()	Creates the datatype for the large variant of String.

Method Summary

Modifier and Type	Method	Description
String	get(Backend backend, ResultSet resultSet, int[] pos, boolean mapNull, Integer size)	Gets the object from a result set. Must be implemented if DataType.isPredefined() returns false.
SqlType	getSqlType(Backend backend, int index)	Gets the SQL type. For predefined types, the type must be the same for all backends and the backend argument may be null. Application specific types, however, can use different sql types for different backends and for those types the backend argument is always valid.
String	getVariant()	Gets the optional variant of the type.
Object[]	set(Backend backend, PreparedStatement statement, int pos, String object, boolean mapNull, Integer size)	Sets the object into a prepared statement. Must be implemented if DataType.isPredefined() returns false.

Methods inherited from class org.tentackle.sql.datatypes.StringType

getJavaType, getMappedNullValue, isMapNullSupported, valueOf, valueOfLiteralToCode

Methods inherited from class org.tentackle.sql.datatypes.AbstractDataType

assertColumnCountNotBackendSpecific, createColumnNames, createColumnNamesAsString, equals, getColumnAlias, getColumnCount, getColumnGetter, getColumnSuffix, getColumnValue, getCommentSuffix, getDataTypeConstant, getScale, getSize, getSortableColumns, hashCode, isBool, isColumnCountBackendSpecific, isDateOrTime, isDowncastNecessary, isJavaTypeGenerified, isLiteralSupported, isModelProvidingInnerType, isMutable, isNumeric, isPredefined, isPrimitive, isTimezoneApplicable, isUTCSupported, set, toLiteral, toNonPrimitive, toPrimitive, toString, toString, valueStringToCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

LargeStringType

public LargeStringType()

Creates the datatype for the large variant of String.

Method Details

getVariant

public String getVariant()

Description copied from interface: DataType

Gets the optional variant of the type.

Specified by:

getVariant in interface DataType<String>

Overrides:

getVariant in class AbstractDataType<String>

Returns:

the variant, empty string if none, never null

getSqlType

public SqlType getSqlType(Backend backend,
 int index)

Description copied from interface: DataType

Gets the SQL type.
For predefined types, the type must be the same for all backends and the backend argument may be null.
Application specific types, however, can use different sql types for different backends and for those types the backend argument is always valid.

Specified by:

getSqlType in interface DataType<String>

Overrides:

getSqlType in class StringType

Parameters:

backend - the backend, not used by predefined types

index - the column index

Returns:

the SQL type

set

public Object[] set(Backend backend,
 PreparedStatement statement,
 int pos,
 String object,
 boolean mapNull,
 Integer size)
             throws SQLException

Description copied from interface: DataType

Sets the object into a prepared statement.
Must be implemented if DataType.isPredefined() returns false. Not invoked by framework otherwise.

Specified by:

set in interface DataType<String>

Overrides:

set in class StringType

Parameters:

backend - the database backend

statement - the prepared statement

pos - the position of the first SQL value

object - the object, may be null

mapNull - true if map null-values to non-null values

size - the optional size specified in the model

Returns:

the values stored in the prepared statement

Throws:

SQLException - if failed

get

public String get(Backend backend,
 ResultSet resultSet,
 int[] pos,
 boolean mapNull,
 Integer size)
           throws SQLException

Description copied from interface: DataType

Gets the object from a result set.
Must be implemented if DataType.isPredefined() returns false. Not invoked by framework otherwise.

Specified by:

get in interface DataType<String>

Overrides:

get in class StringType

Parameters:

backend - the database backend

resultSet - the result set

pos - the column positions in the result set

mapNull - true if unmap null-values from non-null values

size - the optional size specified in the model

Returns:

the object or null if column(s) IS NULL

Throws:

SQLException - if failed