com.sap.conn.jco

Interface JCoClassMetaData

All Superinterfaces:

Cloneable, JCoMetaData, Serializable

public interface JCoClassMetaData
extends JCoMetaData

Encapsulates the metadata of ABAP classes. The interface comprises public methods for access to ABAP class definition. JCoClassMetaData is used by JCoAbapObjects.

Note: The implementation for this interface provided by the JCo runtime. Other implementations are not supported.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	JCoClassMetaData.JCoAttributeKind An enumeration of the possible or relevant attribute types.

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

Methods

Modifier and Type	Method and Description
void	add(String declaringClass, String attributeName, int attributeType, int charLength, int decimals, String description, Object metaData, JCoExtendedFieldMetaData extended, JCoClassMetaData.JCoAttributeKind kind, boolean readOnly, String initialValue) Adds an attribute to the class definition.
void	addImplementedInterface(String implementedInterface) Adds an interface implemented by the class type.
void	addParentClass(String parentClass) Adds the parent class.
JCoClassMetaData.JCoAttributeKind	getAttributeKind(int index) Returns what kind of attribute the given attribute is.
JCoClassMetaData.JCoAttributeKind	getAttributeKind(String attributeName) Returns what kind of attribute the given attribute is.
String	getDeclaringClass(int index) Returns the name of the declaring class of the given attribute.
String	getDeclaringClass(String attributeName) Returns the name of the declaring class of the given attribute.
String	getDefault(int index) Returns the default value of the data field at the specified index.
String	getDefault(String attributeName) Returns the default value for the attribute with the given name.
List<String>	getImplementedInterfaces() Returns the list of implemented interfaces.
List<String>	getParentClasses() Returns the parent classes.
boolean	isReadOnly(int index) Indicates whether the given attribute is a read-only attribute or not.
boolean	isReadOnly(String attributeName) Indicates whether the given attribute is a read-only attribute or not.

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 Detail

getParentClasses

List<String> getParentClasses()

Returns the parent classes. The parent classes are the classes that the current class extends, directly or indirectly. The names of these classes are stored in a String array starting with the root class and then going down the extension hierarchy until the current class is reached.

Returns:

the names of all parent classes in a string array; an empty array is returned if there are no parent classes

getImplementedInterfaces

List<String> getImplementedInterfaces()

Returns the list of implemented interfaces.

Returns:

an array of interface names

isReadOnly

boolean isReadOnly(String attributeName)

Indicates whether the given attribute is a read-only attribute or not.

Parameters:

attributeName - - the name of the attribute

Returns:

true if the attribute is read-only (const) or not

Throws:

JCoRuntimeException - with group JCoException.JCO_ERROR_FIELD_NOT_FOUND if an attribute with the given name does not exist

See Also:

isReadOnly(int)

isReadOnly

boolean isReadOnly(int index)

Indicates whether the given attribute is a read-only attribute or not.

Parameters:

index - - the index of the attribute

Returns:

true if the attribute is read-only (const) or not

See Also:

isReadOnly(String)

getAttributeKind

JCoClassMetaData.JCoAttributeKind getAttributeKind(String attributeName)

Returns what kind of attribute the given attribute is.

Parameters:

attributeName - - the name of the attribute

Returns:

the kind of the attribute as an element of the enumeration JCoClassMetaData.JCoAttributeKind

Throws:

JCoRuntimeException - with group JCoException.JCO_ERROR_FIELD_NOT_FOUND if an attribute with the given name does not exist

See Also:

getAttributeKind(int)

getAttributeKind

JCoClassMetaData.JCoAttributeKind getAttributeKind(int index)

Returns what kind of attribute the given attribute is.

Parameters:

index - - the index of the attribute

Returns:

the kind of the attribute as an element of the enumeration JCoClassMetaData.JCoAttributeKind

See Also:

getAttributeKind(String)

getDeclaringClass

String getDeclaringClass(String attributeName)

Returns the name of the declaring class of the given attribute. The declaring class is the class from which this class (represented by this metadata entity) inherits the attribute, or this class itself if it declares the attribute.

Parameters:

attributeName - - the name of the attribute

Returns:

the declaring class of the given attribute

See Also:

getDeclaringClass(String)

getDeclaringClass

String getDeclaringClass(int index)

Returns the name of the declaring class of the given attribute. The declaring class is the class from which this class (represented by this metadata entity) inherits the attribute, or this class itself if it declares the attribute.

Parameters:

index - - the index of the attribute

Returns:

the declaring class of the given attribute

Throws:

JCoRuntimeException - with group JCoException.JCO_ERROR_FIELD_NOT_FOUND if an attribute with the given name does not exist

See Also:

getDeclaringClass(int)

getDefault

String getDefault(int index)

Returns the default value of the data field at the specified index.

Parameters:

index - - the index of the field

Returns:

data field default value

See Also:

getDefault(String)

getDefault

String getDefault(String attributeName)

Returns the default value for the attribute with the given name.

Parameters:

attributeName - - the name of the attribute

Returns:

default value of the attribute

Throws:

JCoRuntimeException - with group JCoException.JCO_ERROR_FIELD_NOT_FOUND if an attribute with the given name does not exist

See Also:

getDefault(int)

add

void add(String declaringClass,
       String attributeName,
       int attributeType,
       int charLength,
       int decimals,
       String description,
       Object metaData,
       JCoExtendedFieldMetaData extended,
       JCoClassMetaData.JCoAttributeKind kind,
       boolean readOnly,
       String initialValue)

Adds an attribute to the class definition.

Parameters:

declaringClass - class where the attribute was declared

attributeName - attribute name

attributeType - type of the attribute

charLength - length in chars

decimals - number of decimals in case of BCD type

description - attribute description

metaData - metadata if the attribute has a non scalar type

extended - additional object associated with the attribute

kind - kind of attribute - instance, class member or constant

readOnly - flag, true if the attribute has read only access

initialValue - initial value for the attribute

addParentClass

void addParentClass(String parentClass)

Adds the parent class.

Parameters:

parentClass - a parent class

addImplementedInterface

void addImplementedInterface(String implementedInterface)

Adds an interface implemented by the class type.

Parameters:

implementedInterface - implemented interface