{
  "code": null,
  "collection": "architecture",
  "href": "https://banes-lab.com/ontology#architecture-single-pass-processing",
  "id": "single-pass-processing",
  "kind": "principle",
  "layer": {
    "href": "https://banes-lab.com/ontology/schema#layer-execution-core",
    "json": "https://banes-lab.com/json/records/layer/execution-core",
    "label": "Execution Core",
    "markdown": "https://banes-lab.com/records/layer/execution-core.md",
    "ref": "layer:execution-core"
  },
  "name": "Single-Pass Processing",
  "ref": "architecture:single-pass-processing",
  "relations": [
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-forward-only-state-model",
          "json": "https://banes-lab.com/json/records/lexicon/forward-only-state-model",
          "label": "Forward-Only State Model",
          "markdown": "https://banes-lab.com/records/lexicon/forward-only-state-model.md",
          "ref": "lexicon:forward-only-state-model"
        }
      ],
      "relation": "requires"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology#architecture-memory-efficiency",
          "json": "https://banes-lab.com/json/records/architecture/memory-efficiency",
          "label": "Memory Efficiency",
          "markdown": "https://banes-lab.com/records/architecture/memory-efficiency.md",
          "ref": "architecture:memory-efficiency"
        }
      ],
      "relation": "reinforces"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-large-input-handling",
          "json": "https://banes-lab.com/json/records/lexicon/large-input-handling",
          "label": "Large Input Handling",
          "markdown": "https://banes-lab.com/records/lexicon/large-input-handling.md",
          "ref": "lexicon:large-input-handling"
        }
      ],
      "relation": "enables"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-global-optimization",
          "json": "https://banes-lab.com/json/records/lexicon/global-optimization",
          "label": "Global Optimization",
          "markdown": "https://banes-lab.com/records/lexicon/global-optimization.md",
          "ref": "lexicon:global-optimization"
        },
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-multi-pass-full-materialization",
          "json": "https://banes-lab.com/json/records/lexicon/multi-pass-full-materialization",
          "label": "Multi-Pass Full Materialization",
          "markdown": "https://banes-lab.com/records/lexicon/multi-pass-full-materialization.md",
          "ref": "lexicon:multi-pass-full-materialization"
        }
      ],
      "relation": "tensions-with"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/schema#tension-global-optimization-single-pass-processing",
          "json": "https://banes-lab.com/json/records/tension/global-optimization-single-pass-processing",
          "label": "Single-Pass Processing / Global Optimization",
          "markdown": "https://banes-lab.com/records/tension/global-optimization-single-pass-processing.md",
          "ref": "tension:global-optimization-single-pass-processing"
        },
        {
          "href": "https://banes-lab.com/ontology/schema#tension-multi-pass-full-materialization-single-pass-processing",
          "json": "https://banes-lab.com/json/records/tension/multi-pass-full-materialization-single-pass-processing",
          "label": "Single-Pass Processing / Multi-Pass Full Materialization",
          "markdown": "https://banes-lab.com/records/tension/multi-pass-full-materialization-single-pass-processing.md",
          "ref": "tension:multi-pass-full-materialization-single-pass-processing"
        }
      ],
      "relation": "tensions"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-repeated-full-scan",
          "json": "https://banes-lab.com/json/records/lexicon/repeated-full-scan",
          "label": "Repeated Full Scan",
          "markdown": "https://banes-lab.com/records/lexicon/repeated-full-scan.md",
          "ref": "lexicon:repeated-full-scan"
        }
      ],
      "relation": "violated-by"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-fuse-passes",
          "json": "https://banes-lab.com/json/records/lexicon/fuse-passes",
          "label": "Fuse Passes",
          "markdown": "https://banes-lab.com/records/lexicon/fuse-passes.md",
          "ref": "lexicon:fuse-passes"
        },
        {
          "href": "https://banes-lab.com/ontology#architecture-iterator-pattern",
          "json": "https://banes-lab.com/json/records/architecture/iterator-pattern",
          "label": "Iterator Pattern",
          "markdown": "https://banes-lab.com/records/architecture/iterator-pattern.md",
          "ref": "architecture:iterator-pattern"
        }
      ],
      "relation": "refactored-by"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology/schema#vocabulary-severity-contextual",
          "json": "https://banes-lab.com/json/records/vocabulary/severity-contextual",
          "label": "contextual",
          "markdown": "https://banes-lab.com/records/vocabulary/severity-contextual.md",
          "ref": "vocabulary:severity-contextual"
        }
      ],
      "relation": "severity"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology#architecture-category-streaming-pipeline-dataflow-processing",
          "json": "https://banes-lab.com/json/records/architecture-category/streaming-pipeline-dataflow-processing",
          "label": "Streaming / Pipeline / Dataflow Processing",
          "markdown": "https://banes-lab.com/records/architecture-category/streaming-pipeline-dataflow-processing.md",
          "ref": "architecture-category:streaming-pipeline-dataflow-processing"
        }
      ],
      "relation": "category"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology#architecture-streaming-architecture",
          "json": "https://banes-lab.com/json/records/architecture/streaming-architecture",
          "label": "Streaming Architecture",
          "markdown": "https://banes-lab.com/records/architecture/streaming-architecture.md",
          "ref": "architecture:streaming-architecture"
        },
        {
          "href": "https://banes-lab.com/ontology#architecture-forward-only-processing",
          "json": "https://banes-lab.com/json/records/architecture/forward-only-processing",
          "label": "Forward-Only Processing",
          "markdown": "https://banes-lab.com/records/architecture/forward-only-processing.md",
          "ref": "architecture:forward-only-processing"
        }
      ],
      "relation": "reinforced-by"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/ontology#architecture-category-scalability-performance-optimization",
          "json": "https://banes-lab.com/json/ontology/principles/architecture-category-scalability-performance-optimization",
          "label": "Scalability / Performance / Optimization",
          "markdown": "https://banes-lab.com/ontology/principles/architecture-category-scalability-performance-optimization.md",
          "ref": "chapter:/ontology#architecture-category-scalability-performance-optimization"
        },
        {
          "href": "https://banes-lab.com/ontology#architecture-category-streaming-pipeline-dataflow-processing",
          "json": "https://banes-lab.com/json/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing",
          "label": "Streaming / Pipeline / Dataflow Processing",
          "markdown": "https://banes-lab.com/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing.md",
          "ref": "chapter:/ontology#architecture-category-streaming-pipeline-dataflow-processing"
        },
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-category-core-vocabulary",
          "json": "https://banes-lab.com/json/ontology/lexicon/lexicon-category-core-vocabulary",
          "label": "Core Vocabulary",
          "markdown": "https://banes-lab.com/ontology/lexicon/lexicon-category-core-vocabulary.md",
          "ref": "chapter:/ontology/lexicon#lexicon-category-core-vocabulary"
        },
        {
          "href": "https://banes-lab.com/ontology/lexicon#lexicon-category-streaming-pipeline-dataflow-processing",
          "json": "https://banes-lab.com/json/ontology/lexicon/lexicon-category-streaming-pipeline-dataflow-processing",
          "label": "Streaming / Pipeline / Dataflow Processing",
          "markdown": "https://banes-lab.com/ontology/lexicon/lexicon-category-streaming-pipeline-dataflow-processing.md",
          "ref": "chapter:/ontology/lexicon#lexicon-category-streaming-pipeline-dataflow-processing"
        },
        {
          "href": "https://banes-lab.com/ontology/schema#the-vocabulary-severity",
          "json": "https://banes-lab.com/json/ontology/schema/the-vocabulary-severity",
          "label": "Severity levels",
          "markdown": "https://banes-lab.com/ontology/schema/the-vocabulary-severity.md",
          "ref": "chapter:/ontology/schema#the-vocabulary-severity"
        },
        {
          "href": "https://banes-lab.com/ontology/schema#the-resolutions",
          "json": "https://banes-lab.com/json/ontology/schema/the-resolutions",
          "label": "The resolutions",
          "markdown": "https://banes-lab.com/ontology/schema/the-resolutions.md",
          "ref": "chapter:/ontology/schema#the-resolutions"
        }
      ],
      "relation": "linked-from"
    }
  ],
  "summary": "A design rule that large input is read once, with every result it feeds computed in that one pass.",
  "siblings": {
    "next": {
      "href": "https://banes-lab.com/ontology#architecture-pipeline-architecture",
      "json": "https://banes-lab.com/json/records/architecture/pipeline-architecture",
      "label": "Pipeline Architecture",
      "markdown": "https://banes-lab.com/records/architecture/pipeline-architecture.md",
      "ref": "architecture:pipeline-architecture"
    },
    "previous": {
      "href": "https://banes-lab.com/ontology#architecture-streaming-architecture",
      "json": "https://banes-lab.com/json/records/architecture/streaming-architecture",
      "label": "Streaming Architecture",
      "markdown": "https://banes-lab.com/records/architecture/streaming-architecture.md",
      "ref": "architecture:streaming-architecture"
    }
  },
  "up": {
    "href": null,
    "json": "https://banes-lab.com/json/api/records/architecture",
    "label": "Architecture principles",
    "markdown": "https://banes-lab.com/api/records/architecture.md",
    "ref": "api:records/architecture"
  },
  "aliases": [],
  "exemplar": {
    "after": "const names: string[] = [];\nconst active: Foo[] = [];\nlet total = 0;\nfor (const foo of foos) {\n  names.push(foo.name);\n  if (foo.active) active.push(foo);\n  total += foo.count;\n}",
    "before": "const names = foos.map(foo => foo.name);\nconst active = foos.filter(foo => foo.active);\nconst total = foos.reduce((sum, foo) => sum + foo.count, 0);",
    "lang": "ts",
    "medium": "code"
  },
  "formedBy": null,
  "scope": [
    "algorithm",
    "stream",
    "parser"
  ],
  "severity": "contextual"
}