Stores decisions on installing, removing or keeping packages
DECISION_LITERAL = 0
DECISION_REASON = 1
$pool :
$decisionMap :
$decisionQueue :
__construct( $pool)
decide( $literal, $level, $why)
satisfy( $literal)
conflict( $literal)
decided( $literalOrPackageId)
undecided( $literalOrPackageId)
decidedInstall( $literalOrPackageId)
decisionLevel( $literalOrPackageId)
decisionRule( $literalOrPackageId)
atOffset( $queueOffset)
validOffset( $queueOffset)
lastReason()
lastLiteral()
reset()
resetToOffset( $offset)
revertLast()
count()
rewind()
current()
key()
next()
valid()
isEmpty()
addDecision( $literal, $level)