Package com.sap.conn.jco

Interface JCoRecordMetaData

All Superinterfaces:

Cloneable, JCoMetaData, Serializable

public interface JCoRecordMetaData
extends JCoMetaData

Encapsulates the metadata of either a structure or a table. Each element of metadata describes a field of these record oriented data containers in terms of name, type, length, offsets, etc. JCoRecordMetadata objects are mainly used to create structures and tables of a certain layout. JCoRecordMetadata contains all the metadata which is specific to records

See Also:

• JCoStructure
• JCoTable

Field Summary

Fields inherited from interface com.sap.conn.jco.JCoMetaData

TYPE_ABAPOBJECT, TYPE_BCD, TYPE_BOX, TYPE_BYTE, TYPE_CDAY, TYPE_CHAR, TYPE_DATE, TYPE_DECF16, TYPE_DECF34, TYPE_DTDAY, TYPE_DTMONTH, TYPE_DTWEEK, TYPE_EXCEPTION, TYPE_FLOAT, TYPE_GENERIC_BOX, TYPE_INT, TYPE_INT1, TYPE_INT2, TYPE_INT8, TYPE_INVALID, TYPE_ITAB, TYPE_NUM, TYPE_STRING, TYPE_STRUCTURE, TYPE_TABLE, TYPE_TIME, TYPE_TMINUTE, TYPE_TSECOND, TYPE_UTCLONG, TYPE_UTCMINUTE, TYPE_UTCSECOND, TYPE_XSTRING, UNINITIALIZED

Method Summary

Modifier and Type	Method	Description
void	add(String name, int type, int nucByteLength, int nucByteOffset, int ucByteLength, int ucByteOffset)	Adds a new scalar field descriptor to the metadata object.
void	add(String name, int type, int nucByteLength, int nucByteOffset, int ucByteLength, int ucByteOffset, int decimals, String description, Object tabMetaData, JCoExtendedFieldMetaData extended)	Adds a new field descriptor to the metadata object.
void	add(String name, int type, int nucByteOffset, int ucByteOffset, JCoRecordMetaData recordMetaData)	Adds a new complex field descriptor to the metadata object, i.e.
int	getByteOffset(int index)	Returns the offset in a non-Unicode layout of the data field at the specified index.
int	getByteOffset(String fieldName)	Returns the offset in a non-Unicode layout of the field with the specified name.
String	getLineType()	In case the JCoRecordMetaData represents a table type, getLineType() returns the name of the structure, table or data element, which is the line type of the table.
int	getRecordLength()	Returns the total length of a structure or single row of a table with a non-Unicode layout.
int	getUnicodeByteOffset(int index)	Returns the offset in a Unicode layout of the data field at the specified index.
int	getUnicodeByteOffset(String fieldName)	Returns the offset in a Unicode layout of the field with the specified name.
int	getUnicodeRecordLength()	Returns the total length of a structure or single row of a table with a Unicode layout.
boolean	isNestedType1Structure()	Checks whether this JCoRecordMetaData is a nested TYPE1 structure, which is a structure with a fixed length in memory, but with a nested layout.
void	setLineType(String lineTypeName)	In case the JCoRecordMetaData is created for a JCoCustomRepository and represents a table type, setLineType() allows setting the name of the structure, table or data element, which is the line type of the table.
void	setRecordLength(int recordNUCLength, int recordUCLength)	Sets the total length of a structure or single row of a table.

Methods inherited from interface com.sap.conn.jco.JCoMetaData

getByteLength, getByteLength, getClassMetaData, getClassMetaData, getClassNameOfField, getClassNameOfField, getDecimals, getDecimals, getDescription, getDescription, getExtendedFieldMetaData, getExtendedFieldMetaData, getFieldCount, getLength, getLength, getName, getName, getRecordMetaData, getRecordMetaData, getRecordTypeName, getRecordTypeName, getType, getType, getTypeAsString, getTypeAsString, getUnicodeByteLength, getUnicodeByteLength, hasField, indexOf, isAbapObject, isAbapObject, isLocked, isNestedType1Structure, isNestedType1Structure, isStructure, isStructure, isTable, isTable, lock, setName

Method Details

add

void add(String name,
 int type,
 int nucByteLength,
 int nucByteOffset,
 int ucByteLength,
 int ucByteOffset)

Adds a new scalar field descriptor to the metadata object.

Parameters:

name - Field name for identifying this data field

type - Data field type

nucByteLength - Data field length in bytes for non-Unicode layout

ucByteLength - Data field length in bytes for Unicode layout

nucByteOffset - Data field offset in bytes for non-Unicode layout

ucByteOffset - Data field offset in bytes for Unicode layout

add

void add(String name,
 int type,
 int nucByteOffset,
 int ucByteOffset,
 JCoRecordMetaData recordMetaData)

Adds a new complex field descriptor to the metadata object, i.e. a structure or table

Parameters:

name - Field name for identifying this data field

type - Data field type

nucByteOffset - Data field offset in bytes for non-Unicode layout

ucByteOffset - Data field offset in bytes for Unicode layout

recordMetaData - the metadata for the structure or table

add

void add(String name,
 int type,
 int nucByteLength,
 int nucByteOffset,
 int ucByteLength,
 int ucByteOffset,
 int decimals,
 String description,
 Object tabMetaData,
 JCoExtendedFieldMetaData extended)

Adds a new field descriptor to the metadata object.

Parameters:

name - Field name for identifying this data field

type - Data field type

nucByteLength - Data field length in bytes for non-Unicode layout

ucByteLength - Data field length in bytes for Unicode layout

nucByteOffset - Data field offset in bytes for non-Unicode layout

ucByteOffset - Data field offset in bytes for Unicode layout

decimals - Data field number of decimals (only necessary for the data types TYPE_BCD and TYPE_FLOAT)

description - Descriptional text of the data field

tabMetaData - metadata if the field is a complex field, i.e. structure or table, null otherwise

extended - extended metadata for this field or null if none available.

getUnicodeByteOffset

int getUnicodeByteOffset(int index)

Returns the offset in a Unicode layout of the data field at the specified index.

Parameters:

index - the index of the field

Returns:

data field offset in Unicode layout

getUnicodeByteOffset

int getUnicodeByteOffset(String fieldName)

Returns the offset in a Unicode layout of the field with the specified name.

Parameters:

fieldName - the name of the field

Returns:

data field offset in Unicode layout

Throws:

JCoRuntimeException - with group JCO_ERROR_FIELD_NOT_FOUND if a field with this name does not exist

getByteOffset

int getByteOffset(int index)

Returns the offset in a non-Unicode layout of the data field at the specified index.

Parameters:

index - the index of the field

Returns:

data field offset in non-Unicode layout

getByteOffset

int getByteOffset(String fieldName)

Returns the offset in a non-Unicode layout of the field with the specified name.

Parameters:

fieldName - the name of the field

Returns:

data field offset in non-Unicode layout

Throws:

JCoRuntimeException - with group JCO_ERROR_FIELD_NOT_FOUND if a field with this name does not exist

getUnicodeRecordLength

int getUnicodeRecordLength()

Returns the total length of a structure or single row of a table with a Unicode layout. Due to alignment constraints the length of a structure or table row is not necessarily the same as the sum of the field length.

Returns:

The total length of the record with Unicode layout

getRecordLength

int getRecordLength()

Returns the total length of a structure or single row of a table with a non-Unicode layout. Due to alignment constraints the length of a structure or table row is not necessarily the same as the sum of the field length.

Returns:

The total length of the record with non-Unicode layout

setRecordLength

void setRecordLength(int recordNUCLength,
 int recordUCLength)

Sets the total length of a structure or single row of a table. If the metadata instance has already been locked, an UnsupportedOperationException will be thrown.

Parameters:

recordNUCLength - the byte length of the structure with non-Unicode layout

recordUCLength - the byte length of the structure with Unicode layout

isNestedType1Structure

boolean isNestedType1Structure()

Checks whether this JCoRecordMetaData is a nested TYPE1 structure, which is a structure with a fixed length in memory, but with a nested layout.

Returns:

true if the JCoRecordData is a nested TYPE1 structure, false otherwise

getLineType

String getLineType()

In case the JCoRecordMetaData represents a table type, getLineType() returns the name of the structure, table or data element, which is the line type of the table. If the metadata represents a structure, null is returned.

Returns:

the name of the line type for table types, null otherwise

setLineType

void setLineType(String lineTypeName)

In case the JCoRecordMetaData is created for a JCoCustomRepository and represents a table type, setLineType() allows setting the name of the structure, table or data element, which is the line type of the table. If the metadata instance has already been locked, an UnsupportedOperationException will be thrown.

Parameters:

lineTypeName - the name of the line type for table types, null otherwise

Since:

JCo 3.0.7