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Index ¶
Constants ¶
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const ( // Accept indicates that the message should be processed Accept = iota // Reject indicates that the message should not be processed Reject // Forward indicates that the rule could not determine the correct course of action Forward )
Variables ¶
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var AcceptRule = Rule(acceptRule{})
AcceptRule always returns Accept as a result for Apply
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var EmptyRejectRule = Rule(emptyRejectRule{})
EmptyRejectRule rejects empty messages
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var NoopCommitter = Committer(noopCommitter{})
NoopCommitter does nothing on commit and is not isolated
Functions ¶
This section is empty.
Types ¶
type Committer ¶
type Committer interface {
// Commit performs whatever action should be performed upon commiting of a message
Commit()
// Isolated returns whether this transaction should have a block to itself or may be mixed with other transactions
Isolated() bool
}
Committer is returned by postfiltering and should be invoked once the message has been written to the blockchain
type Rule ¶
type Rule interface {
// Apply applies the rule to the given Envelope, replying with the Action to take for the message
// If the filter Accepts a message, it should provide a committer to use when writing the message to the chain
Apply(message *ab.Envelope) (Action, Committer)
}
Rule defines a filter function which accepts, rejects, or forwards (to the next rule) an Envelope
type RuleSet ¶
type RuleSet struct {
// contains filtered or unexported fields
}
RuleSet is used to apply a collection of rules
func NewRuleSet ¶
NewRuleSet creates a new RuleSet with the given ordered list of Rules
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