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compareTo() — netty Function Reference

Architecture documentation for the compareTo() function in DefaultChannelId.java from the netty codebase.

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Entity Profile

Dependency Diagram

graph TD
  591edfaf_0e7e_48ab_0eb0_f09c4447b3fa["compareTo()"]
  20dcb0e9_635a_927e_e4b0_31b79bc84709["DefaultChannelId"]
  591edfaf_0e7e_48ab_0eb0_f09c4447b3fa -->|defined in| 20dcb0e9_635a_927e_e4b0_31b79bc84709
  style 591edfaf_0e7e_48ab_0eb0_f09c4447b3fa fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

transport/src/main/java/io/netty/channel/DefaultChannelId.java lines 299–324

    @Override
    public int compareTo(final ChannelId o) {
        if (this == o) {
            // short circuit
            return 0;
        }
        if (o instanceof DefaultChannelId) {
            // lexicographic comparison
            final byte[] otherData = ((DefaultChannelId) o).data;
            int len1 = data.length;
            int len2 = otherData.length;
            int len = Math.min(len1, len2);

            for (int k = 0; k < len; k++) {
                byte x = data[k];
                byte y = otherData[k];
                if (x != y) {
                    // treat these as unsigned bytes for comparison
                    return (x & 0xff) - (y & 0xff);
                }
            }
            return len1 - len2;
        }

        return asLongText().compareTo(o.asLongText());
    }

Domain

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Defined In

Source

Frequently Asked Questions

What does compareTo() do?
compareTo() is a function in the netty codebase, defined in transport/src/main/java/io/netty/channel/DefaultChannelId.java.
Where is compareTo() defined?
compareTo() is defined in transport/src/main/java/io/netty/channel/DefaultChannelId.java at line 299.

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