com.connecterra.alepc.api
Class PCStatus

java.lang.Object
  com.connecterra.alepc.api.PCStatus

public class PCStatus

extends java.lang.Object

This is a type-safe enum which represents the conditions under which a programming cycle can fail.

Field Summary

static PCStatus	CACHE_EMPTY Indicates that a programming cycle could not be started because the EPC cache was empty.
static PCStatus	ENGINE_ERROR Indicates that the ALE engine itself has some kind of problem.
static PCStatus	INCOMPATIBLE_TAG_TYPE Indicates that the tag (or reader) is a of a type that is not compatible with the EPC value that was supplied to be written to the tag (for example, a 96-bit EPC written to a 64-bit tag).
static PCStatus	LOCKED Indicates that the tag is locked and therefore cannot be programmed.
static PCStatus	MULTIPLE_IN_FIELD Indicates that multiple tags were in the field of the programming cycle's reader(s).
static PCStatus	NONE_IN_FIELD Indicates that no tags were in the field of the programming cycle's reader(s).
static PCStatus	NOT_WRITTEN Indicates that the tag was not written (the verification readback yielded the original tag value).
static PCStatus	READ_ONLY Indicates that the tag is a read-only type and therefore cannot be programmed.
static PCStatus	READER_BUSY Indicates that one or more of the programming cycle's readers is already in use by a programming cycle or by an event cycle.
static PCStatus	READER_ERROR Indicates that one or more of the programming cycle's readers has some kind of problem.
static PCStatus	SUCCESSFUL Indicates that the programming cycle completed successfully.
static PCStatus	VERIFY_ERROR Indicates that the tag was mis-programmed (the verification readback yielded a CRC error or value other than the intended one).

Method Summary

boolean	isSuccessful() Tells if this status value represents a successful programming cycle outcome.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SUCCESSFUL

public static final PCStatus SUCCESSFUL

Indicates that the programming cycle completed successfully.

NONE_IN_FIELD

public static final PCStatus NONE_IN_FIELD

Indicates that no tags were in the field of the programming cycle's reader(s). If this condition is detected the programming cycle retries the operation (subject to PCSpec stopping conditions).

NOT_WRITTEN

public static final PCStatus NOT_WRITTEN

Indicates that the tag was not written (the verification readback yielded the original tag value). If this condition is detected the programming cycle retries the operation (subject to PCSpec stopping conditions).

VERIFY_ERROR

public static final PCStatus VERIFY_ERROR

Indicates that the tag was mis-programmed (the verification readback yielded a CRC error or value other than the intended one). If this condition is detected the programming cycle retries the operation (subject to PCSpec stopping conditions), unless the tag is known to be write-once.

MULTIPLE_IN_FIELD

public static final PCStatus MULTIPLE_IN_FIELD

Indicates that multiple tags were in the field of the programming cycle's reader(s). If this condition is detected the programming cycle is immediately terminated.

LOCKED

public static final PCStatus LOCKED

Indicates that the tag is locked and therefore cannot be programmed. If this condition is detected the programming cycle is immediately terminated.

INCOMPATIBLE_TAG_TYPE

public static final PCStatus INCOMPATIBLE_TAG_TYPE

Indicates that the tag (or reader) is a of a type that is not compatible with the EPC value that was supplied to be written to the tag (for example, a 96-bit EPC written to a 64-bit tag). If this condition is detected the programming cycle is immediately terminated.

READ_ONLY

public static final PCStatus READ_ONLY

Indicates that the tag is a read-only type and therefore cannot be programmed. If this condition is detected the programming cycle is immediately terminated.

CACHE_EMPTY

public static final PCStatus CACHE_EMPTY

Indicates that a programming cycle could not be started because the EPC cache was empty. If this condition is detected the programming cycle is immediately terminated.

READER_BUSY

public static final PCStatus READER_BUSY

Indicates that one or more of the programming cycle's readers is already in use by a programming cycle or by an event cycle. If this condition is detected the attempted programming cycle is immediately terminated.

READER_ERROR

public static final PCStatus READER_ERROR

Indicates that one or more of the programming cycle's readers has some kind of problem.

ENGINE_ERROR

public static final PCStatus ENGINE_ERROR

Indicates that the ALE engine itself has some kind of problem.

Method Detail

toString

public java.lang.String toString()

isSuccessful

public boolean isSuccessful()

Tells if this status value represents a successful programming cycle outcome.