Package com.mendix.core.objectmanagement.member

Interface MendixBinary

All Superinterfaces:

IMendixObjectMember<InputStream>

public interface MendixBinary
extends IMendixObjectMember<InputStream>

Provides the interface for a Mendix attribute with type Binary.

Nested Class Summary

Nested classes/interfaces inherited from interface com.mendix.systemwideinterfaces.core.IMendixObjectMember

IMendixObjectMember.MemberState, IMendixObjectMember.MemberValueState

Method Summary

Modifier and Type	Method	Description
String	getContentType(IContext context)	Return Content-Type.
String	getETag(IContext context)	Return ETag.
String	getFileName(IContext context)	Return file name.
Long	getLength(IContext context)	Returns the length of the stored binary data.
InputStream	getValue(IContext context, long start, long length)	Provide access to the specified range of bytes of the value.
void	retrieveValue(IContext context, OutputStream out)	Retrieve value and write to output stream.
void	storeValue(IContext context, InputStream value, long length)	Set the value the given input stream up to the length.

Methods inherited from interface com.mendix.systemwideinterfaces.core.IMendixObjectMember

getMemberValueState, getName, getOriginalValue, getState, getValue, getValueFromString, hasReadAccess, hasWriteAccess, isVirtual, parseValueFromString, parseValueToString, setValue, setValue, toString

Method Details

getValue

InputStream getValue(IContext context,
 long start,
 long length)

Provide access to the specified range of bytes of the value. Support for partial reading is experimental, not all implementations of MendixBinary support it.

Parameters:

context - the context for accessing the attribute

start - the beginning position

length - the number of bytes to read

Returns:

the stream for the requested range

Since:

8.13.0

retrieveValue

void retrieveValue(IContext context,
 OutputStream out)

Retrieve value and write to output stream.

Parameters:

context - the context for accessing the attribute

out - the output stream to write the value to

storeValue

void storeValue(IContext context,
 InputStream value,
 long length)

Set the value the given input stream up to the length.

Parameters:

context - the context for accessing the attribute

value - the input stream to read the value from

length - the number of bytes to read

getLength

Long getLength(IContext context)

Returns the length of the stored binary data. If the underlying entity has a length field then its permissions apply. If not, the permissions of the content attribute are applied.

Parameters:

context - the context for accessing the attribute

Returns:

the length of the stored binary data or null if the length is unknown

getContentType

String getContentType(IContext context)

Return Content-Type.

Parameters:

context - the context for accessing the attribute

Returns:

the binary's content type if known, null otherwise

getFileName

String getFileName(IContext context)

Return file name.

Parameters:

context - the context for accessing the attribute

Returns:

the binary's file name if known, null otherwise

getETag

String getETag(IContext context)

Return ETag.

Parameters:

context - the context for accessing the attribute

Returns:

an ETag for the binary, getETag should never return null