402431: Bugzilla should provide kind for people attributes

Change-Id: Ie9e7224ea6d9902f6a2e17a059521aedb539f917
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=402431

1 files changed, 115 insertions, 105 deletions

diff --git a/org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/BugzillaAttribute.java b/org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/BugzillaAttribute.java
index ace917153..52d0a58fb 100644
--- a/org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/BugzillaAttribute.java
+++ b/org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/BugzillaAttribute.java
@@ -11,233 +11,236 @@
 
 package org.eclipse.mylyn.internal.bugzilla.core;
 
+import java.util.Arrays;
+import java.util.EnumSet;
+
+import org.eclipse.mylyn.tasks.core.data.AbstractTaskSchema.Flag;
 import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
 
 /**
  * @author Rob Elves
  */
 public enum BugzillaAttribute {
-
 	STATUS_WHITEBOARD(Messages.BugzillaAttribute_Status_Whiteboard,
-			"status_whiteboard", TaskAttribute.TYPE_LONG_RICH_TEXT, false, false), //$NON-NLS-1$
+			"status_whiteboard", TaskAttribute.TYPE_LONG_RICH_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	ACTUAL_TIME(Messages.BugzillaAttribute_Worked, "actual_time", TaskAttribute.TYPE_SHORT_TEXT, true, true), //$NON-NLS-1$
+	ACTUAL_TIME(Messages.BugzillaAttribute_Worked, "actual_time", TaskAttribute.TYPE_SHORT_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	ADD_COMMENT(Messages.BugzillaAttribute_Additional_Comments, "comment", TaskAttribute.TYPE_LONG_TEXT, true, false), //$NON-NLS-1$
+	ADD_COMMENT(Messages.BugzillaAttribute_Additional_Comments, "comment", TaskAttribute.TYPE_LONG_TEXT), //$NON-NLS-1$
 
-	ALIAS(Messages.BugzillaAttribute_Alias, "alias", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	ALIAS(Messages.BugzillaAttribute_Alias, "alias", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	ASSIGNED_TO(Messages.BugzillaAttribute_Assigned_to, "assigned_to", TaskAttribute.TYPE_PERSON, true, true), //$NON-NLS-1$
+	ASSIGNED_TO(Messages.BugzillaAttribute_Assigned_to,
+			"assigned_to", TaskAttribute.TYPE_PERSON, Flag.PEOPLE, Flag.READ_ONLY), //$NON-NLS-1$
 
 	ASSIGNED_TO_NAME(Messages.BugzillaAttribute_Assigned_to_NAME,
-			"assigned_to_name", TaskAttribute.TYPE_PERSON, true, true), //$NON-NLS-1$
+			"assigned_to_name", TaskAttribute.TYPE_PERSON, Flag.READ_ONLY), //$NON-NLS-1$
 
-	ATTACHID(Messages.BugzillaAttribute_ATTACH_ID, "attachid", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	ATTACHID(Messages.BugzillaAttribute_ATTACH_ID, "attachid", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	ATTACHMENT(Messages.BugzillaAttribute_attachment, "attachment", TaskAttribute.TYPE_ATTACHMENT, false, false), //$NON-NLS-1$
+	ATTACHMENT(Messages.BugzillaAttribute_attachment, "attachment", TaskAttribute.TYPE_ATTACHMENT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	BLOCKED(Messages.BugzillaAttribute_Blocks, "blocked", TaskAttribute.TYPE_TASK_DEPENDENCY, false, false), //$NON-NLS-1$
+	BLOCKED(Messages.BugzillaAttribute_Blocks, "blocked", TaskAttribute.TYPE_TASK_DEPENDENCY, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	BUG(Messages.BugzillaAttribute_bug, "bug", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	BUG(Messages.BugzillaAttribute_bug, "bug", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	BUG_FILE_LOC(Messages.BugzillaAttribute_URL, "bug_file_loc", TaskAttribute.TYPE_URL, false, false), //$NON-NLS-1$
+	BUG_FILE_LOC(Messages.BugzillaAttribute_URL, "bug_file_loc", TaskAttribute.TYPE_URL, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	BUG_ID(Messages.BugzillaAttribute_Bug_ID, "bug_id", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	BUG_ID(Messages.BugzillaAttribute_Bug_ID, "bug_id", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	BUG_SEVERITY(Messages.BugzillaAttribute_Severity, "bug_severity", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	BUG_SEVERITY(Messages.BugzillaAttribute_Severity, "bug_severity", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	BUG_STATUS(Messages.BugzillaAttribute_Status, "bug_status", TaskAttribute.TYPE_SHORT_TEXT, true, true), //$NON-NLS-1$
+	BUG_STATUS(Messages.BugzillaAttribute_Status, "bug_status", TaskAttribute.TYPE_SHORT_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	BUG_WHEN(Messages.BugzillaAttribute_bug_when, "bug_when", TaskAttribute.TYPE_DATE, true, true), //$NON-NLS-1$
+	BUG_WHEN(Messages.BugzillaAttribute_bug_when, "bug_when", TaskAttribute.TYPE_DATE, Flag.READ_ONLY), //$NON-NLS-1$
 
-	BUGZILLA(Messages.BugzillaAttribute_bugzilla, "bugzilla", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	BUGZILLA(Messages.BugzillaAttribute_bugzilla, "bugzilla", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	CC(Messages.BugzillaAttribute_CC, "cc", IBugzillaConstants.EDITOR_TYPE_REMOVECC, true, true), //$NON-NLS-1$
+	CC(Messages.BugzillaAttribute_CC, "cc", IBugzillaConstants.EDITOR_TYPE_REMOVECC, Flag.READ_ONLY), //$NON-NLS-1$
 
-	REMOVECC(Messages.BugzillaAttribute_Remove_CC, "removecc", IBugzillaConstants.EDITOR_TYPE_REMOVECC, true, true), //$NON-NLS-1$
+	REMOVECC(Messages.BugzillaAttribute_Remove_CC, "removecc", IBugzillaConstants.EDITOR_TYPE_REMOVECC, Flag.READ_ONLY), //$NON-NLS-1$
 
-	CCLIST_ACCESSIBLE(Messages.BugzillaAttribute_CC_List, "cclist_accessible", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	CCLIST_ACCESSIBLE(Messages.BugzillaAttribute_CC_List, "cclist_accessible", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	CLASSIFICATION(Messages.BugzillaAttribute_Classification,
-			"classification", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	CLASSIFICATION(Messages.BugzillaAttribute_Classification, "classification", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	CLASSIFICATION_ID(Messages.BugzillaAttribute_Classification_ID,
-			"classification_id", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	CLASSIFICATION_ID(Messages.BugzillaAttribute_Classification_ID, "classification_id", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	COMMENTID(Messages.BugzillaAttribute_Comment_ID, "commentid", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	COMMENTID(Messages.BugzillaAttribute_Comment_ID, "commentid", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	COMPONENT(Messages.BugzillaAttribute_Component, "component", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	COMPONENT(Messages.BugzillaAttribute_Component, "component", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	CONFIRM_PRODUCT_CHANGE("confirm_product_change", "confirm_product_change", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$ //$NON-NLS-2$
+	CONFIRM_PRODUCT_CHANGE("confirm_product_change", "confirm_product_change", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$ //$NON-NLS-2$
 
-	CREATION_TS(Messages.BugzillaAttribute_Opened, "creation_ts", TaskAttribute.TYPE_DATE, true, false), //$NON-NLS-1$
+	CREATION_TS(Messages.BugzillaAttribute_Opened, "creation_ts", TaskAttribute.TYPE_DATE), //$NON-NLS-1$
 
-	CTYPE(Messages.BugzillaAttribute_Content_Type, "ctype", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	CTYPE(Messages.BugzillaAttribute_Content_Type, "ctype", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	DATA(Messages.BugzillaAttribute_data, "data", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	DATA(Messages.BugzillaAttribute_data, "data", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	DATE(Messages.BugzillaAttribute_Date, "date", TaskAttribute.TYPE_DATE, false, false), //$NON-NLS-1$
+	DATE(Messages.BugzillaAttribute_Date, "date", TaskAttribute.TYPE_DATE, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	DEADLINE(Messages.BugzillaAttribute_Due, "deadline", TaskAttribute.TYPE_DATE, true, false), //$NON-NLS-1$
+	DEADLINE(Messages.BugzillaAttribute_Due, "deadline", TaskAttribute.TYPE_DATE), //$NON-NLS-1$
 
-	DELTA_TS(Messages.BugzillaAttribute_Modified, "delta_ts", TaskAttribute.TYPE_DATE, true, false), //$NON-NLS-1$
+	DELTA_TS(Messages.BugzillaAttribute_Modified, "delta_ts", TaskAttribute.TYPE_DATE), //$NON-NLS-1$
 
 	DEPENDSON(Messages.BugzillaAttribute_Depends_on__Subtasks_,
-			"dependson", TaskAttribute.TYPE_TASK_DEPENDENCY, false, false), //$NON-NLS-1$
+			"dependson", TaskAttribute.TYPE_TASK_DEPENDENCY, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	DESC(Messages.BugzillaAttribute_desc, "desc", TaskAttribute.TYPE_LONG_TEXT, true, true), //$NON-NLS-1$
+	DESC(Messages.BugzillaAttribute_desc, "desc", TaskAttribute.TYPE_LONG_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	DUP_ID(Messages.BugzillaAttribute_Duplicate_of, "dup_id", TaskAttribute.TYPE_TASK_DEPENDENCY, false, false), //$NON-NLS-1$
+	DUP_ID(Messages.BugzillaAttribute_Duplicate_of, "dup_id", TaskAttribute.TYPE_TASK_DEPENDENCY, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	EVERCONFIRMED(Messages.BugzillaAttribute_everconfirmed, "everconfirmed", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	EVERCONFIRMED(Messages.BugzillaAttribute_everconfirmed, "everconfirmed", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	ESTIMATED_TIME(Messages.BugzillaAttribute_Estimated_Time,
-			"estimated_time", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	ESTIMATED_TIME(Messages.BugzillaAttribute_Estimated_Time, "estimated_time", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	EXPORTER_NAME(Messages.BugzillaAttribute_Exporter, "exporter", TaskAttribute.TYPE_PERSON, true, true), //$NON-NLS-1$
+	EXPORTER_NAME(Messages.BugzillaAttribute_Exporter, "exporter", TaskAttribute.TYPE_PERSON, Flag.READ_ONLY), //$NON-NLS-1$
 
-	FILENAME(Messages.BugzillaAttribute_filename, "filename", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	FILENAME(Messages.BugzillaAttribute_filename, "filename", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	FLAG(Messages.BugzillaAttribute_flag, "flag", IBugzillaConstants.EDITOR_TYPE_FLAG, true, false), //$NON-NLS-1$
+	FLAG(Messages.BugzillaAttribute_flag, "flag", IBugzillaConstants.EDITOR_TYPE_FLAG), //$NON-NLS-1$
 
-	GROUP(Messages.BugzillaAttribute_Group, "group", TaskAttribute.TYPE_BOOLEAN, true, true), //$NON-NLS-1$
+	GROUP(Messages.BugzillaAttribute_Group, "group", TaskAttribute.TYPE_BOOLEAN, Flag.READ_ONLY), //$NON-NLS-1$
 
-	IS_OBSOLETE(Messages.BugzillaAttribute_Obsolete, "isobsolete", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	IS_OBSOLETE(Messages.BugzillaAttribute_Obsolete, "isobsolete", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	IS_PATCH(Messages.BugzillaAttribute_Patch, "ispatch", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	IS_PATCH(Messages.BugzillaAttribute_Patch, "ispatch", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	IS_PRIVATE(Messages.BugzillaAttribute_Private, "isprivate", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	IS_PRIVATE(Messages.BugzillaAttribute_Private, "isprivate", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	KEYWORDS(Messages.BugzillaAttribute_Keywords, "keywords", IBugzillaConstants.EDITOR_TYPE_KEYWORDS, false, false), //$NON-NLS-1$
+	KEYWORDS(Messages.BugzillaAttribute_Keywords, "keywords", IBugzillaConstants.EDITOR_TYPE_KEYWORDS, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	LONG_DESC(Messages.BugzillaAttribute_Description, "long_desc", TaskAttribute.TYPE_LONG_RICH_TEXT, true, true), //$NON-NLS-1$
+	LONG_DESC(Messages.BugzillaAttribute_Description, "long_desc", TaskAttribute.TYPE_LONG_RICH_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	LONGDESCLENGTH(Messages.BugzillaAttribute_Number_of_comments,
-			"longdesclength", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	LONGDESCLENGTH(Messages.BugzillaAttribute_Number_of_comments, "longdesclength", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	NEWCC(Messages.BugzillaAttribute_Add_CC, "newcc", TaskAttribute.TYPE_PERSON, true, false), //$NON-NLS-1$
+	NEWCC(Messages.BugzillaAttribute_Add_CC, "newcc", TaskAttribute.TYPE_PERSON, Flag.PEOPLE), //$NON-NLS-1$
 
-	OP_SYS(Messages.BugzillaAttribute_OS, "op_sys", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	OP_SYS(Messages.BugzillaAttribute_OS, "op_sys", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	PRIORITY(Messages.BugzillaAttribute_Priority, "priority", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	PRIORITY(Messages.BugzillaAttribute_Priority, "priority", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	PRODUCT(Messages.BugzillaAttribute_Product, "product", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	PRODUCT(Messages.BugzillaAttribute_Product, "product", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	REP_PLATFORM(Messages.BugzillaAttribute_Platform, "rep_platform", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	REP_PLATFORM(Messages.BugzillaAttribute_Platform, "rep_platform", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	REPORTER(Messages.BugzillaAttribute_Reporter, "reporter", TaskAttribute.TYPE_PERSON, true, true), //$NON-NLS-1$
+	REPORTER(Messages.BugzillaAttribute_Reporter, "reporter", TaskAttribute.TYPE_PERSON, Flag.PEOPLE, Flag.READ_ONLY), //$NON-NLS-1$
 
-	REPORTER_NAME(Messages.BugzillaAttribute_REPORT_NAME, "reporter_name", TaskAttribute.TYPE_PERSON, true, true), //$NON-NLS-1$
+	REPORTER_NAME(Messages.BugzillaAttribute_REPORT_NAME, "reporter_name", TaskAttribute.TYPE_PERSON, Flag.READ_ONLY), //$NON-NLS-1$
 
 	REPORTER_ACCESSIBLE(Messages.BugzillaAttribute_REPORT_ACCESSIBLE, "reporter_accessible", //$NON-NLS-1$
-			TaskAttribute.TYPE_BOOLEAN, true, false),
+			TaskAttribute.TYPE_BOOLEAN),
 
-	RESOLUTION(Messages.BugzillaAttribute_Resolution, "resolution", TaskAttribute.TYPE_SHORT_TEXT, false, true), //$NON-NLS-1$
+	RESOLUTION(Messages.BugzillaAttribute_Resolution,
+			"resolution", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE, Flag.READ_ONLY), //$NON-NLS-1$
 
-	REMAINING_TIME(Messages.BugzillaAttribute_Remaining, "remaining_time", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	REMAINING_TIME(Messages.BugzillaAttribute_Remaining, "remaining_time", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	SEE_ALSO(Messages.BugzillaAttribute_See_Also, "see_also", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	SEE_ALSO(Messages.BugzillaAttribute_See_Also, "see_also", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	SET_DEFAULT_ASSIGNEE(Messages.BugzillaAttribute_Reassign_to_default_assignee,
-			"set_default_assignee", TaskAttribute.TYPE_BOOLEAN, true, //$NON-NLS-1$
-			false),
+	SET_DEFAULT_ASSIGNEE(Messages.BugzillaAttribute_Reassign_to_default_assignee, "set_default_assignee", //$NON-NLS-1$
+			TaskAttribute.TYPE_BOOLEAN),
 
-	SHORT_DESC(Messages.BugzillaAttribute_Summary, "short_desc", TaskAttribute.TYPE_SHORT_RICH_TEXT, true, false), //$NON-NLS-1$
+	SHORT_DESC(Messages.BugzillaAttribute_Summary, "short_desc", TaskAttribute.TYPE_SHORT_RICH_TEXT), //$NON-NLS-1$
 
-	SIZE(Messages.BugzillaAttribute_Size, "size", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	SIZE(Messages.BugzillaAttribute_Size, "size", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
 	TARGET_MILESTONE(Messages.BugzillaAttribute_Target_milestone,
-			"target_milestone", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+			"target_milestone", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	THETEXT(Messages.BugzillaAttribute_thetext, "thetext", TaskAttribute.TYPE_SHORT_TEXT, false, true), //$NON-NLS-1$
+	THETEXT(Messages.BugzillaAttribute_thetext,
+			"thetext", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE, Flag.READ_ONLY), //$NON-NLS-1$
 
-	TYPE(Messages.BugzillaAttribute_type, "type", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	TYPE(Messages.BugzillaAttribute_type, "type", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	UNKNOWN(Messages.BugzillaAttribute_UNKNOWN, "UNKNOWN", TaskAttribute.TYPE_SHORT_TEXT, false, false), //$NON-NLS-1$
+	UNKNOWN(Messages.BugzillaAttribute_UNKNOWN, "UNKNOWN", TaskAttribute.TYPE_SHORT_TEXT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	VERSION(Messages.BugzillaAttribute_Version, "version", TaskAttribute.TYPE_SINGLE_SELECT, false, false), //$NON-NLS-1$
+	VERSION(Messages.BugzillaAttribute_Version, "version", TaskAttribute.TYPE_SINGLE_SELECT, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	INSTALL_VERSION(Messages.BugzillaAttribute_version_of_bugzilla_installed, "install_version", null, true, false), //$NON-NLS-1$
+	INSTALL_VERSION(Messages.BugzillaAttribute_version_of_bugzilla_installed, "install_version", null), //$NON-NLS-1$
 
-	VOTES(Messages.BugzillaAttribute_Votes, "votes", IBugzillaConstants.EDITOR_TYPE_VOTES, false, true), //$NON-NLS-1$
+	VOTES(Messages.BugzillaAttribute_Votes,
+			"votes", IBugzillaConstants.EDITOR_TYPE_VOTES, Flag.ATTRIBUTE, Flag.READ_ONLY), //$NON-NLS-1$
 
-	WORK_TIME(Messages.BugzillaAttribute_Add, "work_time", TaskAttribute.TYPE_SHORT_TEXT, true, false), //$NON-NLS-1$
+	WORK_TIME(Messages.BugzillaAttribute_Add, "work_time", TaskAttribute.TYPE_SHORT_TEXT), //$NON-NLS-1$
 
-	WHO(Messages.BugzillaAttribute_who, "who", TaskAttribute.TYPE_PERSON, false, false), //$NON-NLS-1$
+	WHO(Messages.BugzillaAttribute_who, "who", TaskAttribute.TYPE_PERSON, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	WHO_NAME(Messages.BugzillaAttribute_who_name, "who_name", TaskAttribute.TYPE_SHORT_TEXT, true, true), //$NON-NLS-1$
+	WHO_NAME(Messages.BugzillaAttribute_who_name, "who_name", TaskAttribute.TYPE_SHORT_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	QA_CONTACT(Messages.BugzillaAttribute_QA_Contact, "qa_contact", TaskAttribute.TYPE_PERSON, true, false), //$NON-NLS-1$
+	QA_CONTACT(Messages.BugzillaAttribute_QA_Contact, "qa_contact", TaskAttribute.TYPE_PERSON, Flag.PEOPLE), //$NON-NLS-1$
 
 	QA_CONTACT_NAME(Messages.BugzillaAttribute_QA_Contact_NAME,
-			"qa_contact_name", TaskAttribute.TYPE_SHORT_TEXT, true, true), //$NON-NLS-1$
+			"qa_contact_name", TaskAttribute.TYPE_SHORT_TEXT, Flag.READ_ONLY), //$NON-NLS-1$
 
-	ADDSELFCC(Messages.BugzillaAttribute_Add_self_to_CC, "addselfcc", TaskAttribute.TYPE_BOOLEAN, true, false), //$NON-NLS-1$
+	ADDSELFCC(Messages.BugzillaAttribute_Add_self_to_CC, "addselfcc", TaskAttribute.TYPE_BOOLEAN), //$NON-NLS-1$
 
-	STATUS_OPEN(Messages.BugzillaAttribute_open_status_values, "status_open", null, true, true), //$NON-NLS-1$
+	STATUS_OPEN(Messages.BugzillaAttribute_open_status_values, "status_open", null, Flag.READ_ONLY), //$NON-NLS-1$
 
-	NEW_COMMENT(Messages.BugzillaAttribute_new_comment, "new_comment", TaskAttribute.TYPE_LONG_RICH_TEXT, true, false), //$NON-NLS-1$
+	NEW_COMMENT(Messages.BugzillaAttribute_new_comment, "new_comment", TaskAttribute.TYPE_LONG_RICH_TEXT), //$NON-NLS-1$
 
-	TOKEN("token", "token", null, true, true), //$NON-NLS-1$ //$NON-NLS-2$
+	TOKEN("token", "token", null, Flag.READ_ONLY), //$NON-NLS-1$ //$NON-NLS-2$
 
 	// Used by search engine
-	LI(Messages.BugzillaAttribute_used_by_search_engine_li, "li", null, true, false), //$NON-NLS-1$
+	LI(Messages.BugzillaAttribute_used_by_search_engine_li, "li", null), //$NON-NLS-1$
 
-	ID(Messages.BugzillaAttribute_used_by_search_engine_id, "id", null, true, false), //$NON-NLS-1$
+	ID(Messages.BugzillaAttribute_used_by_search_engine_id, "id", null), //$NON-NLS-1$
 
-	SHORT_SHORT_DESC(Messages.BugzillaAttribute_used_by_search_engine_desc, "short_short_desc", null, false, false), //$NON-NLS-1$
+	SHORT_SHORT_DESC(Messages.BugzillaAttribute_used_by_search_engine_desc, "short_short_desc", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	SEQ(Messages.BugzillaAttribute_used_by_search_engine_seq, "seq", null, false, false), //$NON-NLS-1$
+	SEQ(Messages.BugzillaAttribute_used_by_search_engine_seq, "seq", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	RESULT(Messages.BugzillaAttribute_used_by_search_engine_result, "result", null, false, false), //$NON-NLS-1$
+	RESULT(Messages.BugzillaAttribute_used_by_search_engine_result, "result", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	RDF(Messages.BugzillaAttribute_used_by_search_engine_rdf, "rdf", null, false, false), //$NON-NLS-1$
+	RDF(Messages.BugzillaAttribute_used_by_search_engine_rdf, "rdf", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	INSTALLATION(Messages.BugzillaAttribute_used_by_search_engine_installation, "installation", null, false, false), //$NON-NLS-1$
+	INSTALLATION(Messages.BugzillaAttribute_used_by_search_engine_installation, "installation", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	BUGS(Messages.BugzillaAttribute_used_by_search_engine_bugs, "bugs", null, false, false), //$NON-NLS-1$
+	BUGS(Messages.BugzillaAttribute_used_by_search_engine_bugs, "bugs", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
-	QUERY_TIMESTAMP(Messages.BugzillaAttribute_Query_Timestamp, "query_timestamp", null, false, false), //$NON-NLS-1$
+	QUERY_TIMESTAMP(Messages.BugzillaAttribute_Query_Timestamp, "query_timestamp", null, Flag.ATTRIBUTE), //$NON-NLS-1$
 
 	// new in Bugzilla 3.6
-	ATTACHER(Messages.BugzillaAttribute_Attacher, "attacher", null, false, false); //$NON-NLS-1$
+	ATTACHER(Messages.BugzillaAttribute_Attacher, "attacher", null, Flag.ATTRIBUTE); //$NON-NLS-1$
 
 	public static final String KIND_FLAG = "task.common.kind.flag"; //$NON-NLS-1$
 
 	public static final String KIND_FLAG_TYPE = "task.common.kind.flag_type"; //$NON-NLS-1$
 
-	private final boolean isHidden;
-
-	private final boolean isReadOnly;
-
 	private final String keyString;
 
 	private final String prettyName;
 
 	private final String type;
 
+	private EnumSet<Flag> flags;
+
 	public static final BugzillaAttribute[] EXTENDED_ATTRIBUTES = { DELTA_TS, BUG_SEVERITY, PRODUCT };
 
 	public static final BugzillaAttribute[] PERSON_ATTRIBUTES = { ASSIGNED_TO, REPORTER, QA_CONTACT };
 
-	BugzillaAttribute(String prettyName, String idKey, String type, boolean hidden, boolean readonly) {
+	BugzillaAttribute(String prettyName, String idKey, String type) {
+		this(prettyName, idKey, type, (Flag[]) null);
+	}
+
+	BugzillaAttribute(String prettyName, String idKey, String type, Flag... flags) {
 		this.prettyName = prettyName;
 		this.keyString = idKey;
 		this.type = type;
-		this.isHidden = hidden;
-		this.isReadOnly = readonly;
+		if (flags == null || flags.length == 0) {
+			this.flags = EnumSet.noneOf(Flag.class);
+		} else {
+			this.flags = EnumSet.copyOf(Arrays.asList(flags));
+		}
 	}
 
 	public String getKey() {
 		return keyString;
 	}
 
-	public boolean isHidden() {
-		return isHidden;
-	}
-
 	public boolean isReadOnly() {
-		return isReadOnly;
+		return flags.contains(Flag.READ_ONLY);
 	}
 
 	@Override
@@ -246,7 +249,14 @@ public enum BugzillaAttribute {
 	}
 
 	public String getKind() {
-		return isHidden() ? null : TaskAttribute.KIND_DEFAULT;
+		if (flags.contains(Flag.ATTRIBUTE)) {
+			return TaskAttribute.KIND_DEFAULT;
+		} else if (flags.contains(Flag.PEOPLE)) {
+			return TaskAttribute.KIND_PEOPLE;
+		} else if (flags.contains(Flag.OPERATION)) {
+			return TaskAttribute.KIND_OPERATION;
+		}
+		return null;
 	}
 
 	public String getType() {