TaskJuggler::JournalEntryList

The JournalEntryList is an Array with a twist. Before any data retrieval function is called, the list of JournalEntry objects will be sorted by date. This is a utility class only. Use Journal to store a journal.

Public Class Methods

new() click to toggle source

    # File lib/Journal.rb, line 68
68:     def initialize
69:       @entries = []
70:       @sorted = false
71:     end

Public Instance Methods

<<(entry) click to toggle source

Add a new JournalEntry to the list. The list will be marked as unsorted.

    # File lib/Journal.rb, line 79
79:     def <<(entry)
80:       @entries << entry
81:       @sorted = false
82:     end

[](index) click to toggle source

Return the index-th entry.

    # File lib/Journal.rb, line 93
93:     def[](index)
94:       sort!
95:       @entries[index]
96:     end

count() click to toggle source

Return the number of entries.

    # File lib/Journal.rb, line 74
74:     def count
75:       @entries.length
76:     end

delete_if() click to toggle source

Like Array::delete_if

     # File lib/Journal.rb, line 107
107:     def delete_if
108:       @entries.delete_if { |e| yield(e) }
109:     end

each() click to toggle source

The well known iterator. The list will be sorted first.

     # File lib/Journal.rb, line 99
 99:     def each
100:       sort!
101:       @entries.each do |entry|
102:         yield entry
103:       end
104:     end

empty?() click to toggle source

Like Array::empty?

     # File lib/Journal.rb, line 112
112:     def empty?
113:       @entries.empty?
114:     end

first() click to toggle source

Like Array::first but list is first sorted.

     # File lib/Journal.rb, line 122
122:     def first
123:       sort!
124:       @entries.first
125:     end

include?(entry) click to toggle source

Like Array::include?

     # File lib/Journal.rb, line 117
117:     def include?(entry)
118:       @entries.include?(entry)
119:     end

last(date = nil) click to toggle source

Returns the last elements (by date) if date is nil or the last elements right before the given date. If there are multiple entries with exactly the same date, all are returned. Otherwise the result Array will only contain one element. In case no matching entry is found, the Array will be empty.

     # File lib/Journal.rb, line 132
132:     def last(date = nil)
133:       result = JournalEntryList.new
134:       sort!
135: 
136:       @entries.reverse_each do |e|
137:         if result.empty?
138:           # We haven't found any yet. So add the first one we find before the
139:           # cut-off date.
140:           result << e if e.date <= date
141:         elsif result.first.date == e.date
142:           # Now we only accept other entries with the exact same date.
143:           result << e
144:         else
145:           # We've found all entries we are looking for.
146:           break
147:         end
148:       end
149:       result.sort!
150:     end

sort!() click to toggle source

Sort the list of entries. First by ascending by date, than by alertLevel and finally by PropertyTreeNode sequence number.

     # File lib/Journal.rb, line 154
154:     def sort!
155:       if block_given?
156:         @entries.sort! { |a, b| yield(a, b) }
157:       else
158:         return self if @sorted
159: 
160:         @entries.sort! { |a, b| a.date != b.date ?
161:                                 a.date <=> b.date :
162:                                 (a.alertLevel != b.alertLevel ?
163:                                  a.alertLevel <=> b.alertLevel :
164:                                  a.property.sequenceNo <=>
165:                                  b.property.sequenceNo) }
166:       end
167:       @sorted = true
168:       self
169:     end

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