Lee con un filtro de regex de familia (HBase)
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Crea un filtro de límite en una familia de columnas con una regex.
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Para obtener documentación en la que se incluye esta muestra de código, consulta lo siguiente:
Muestra de código
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[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code snippet demonstrates how to use a regular expression (regex) to filter data within a specific column family in a Bigtable table.\u003c/p\u003e\n"],["\u003cp\u003eThe code utilizes the \u003ccode\u003eFamilyFilter\u003c/code\u003e class with a \u003ccode\u003eRegexStringComparator\u003c/code\u003e to match column families based on a provided regex pattern.\u003c/p\u003e\n"],["\u003cp\u003eThe example demonstrates filtering column families starting with \u003ccode\u003estats_\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe filter is applied using the \u003ccode\u003eScan\u003c/code\u003e class which is applied to a read process in \u003ccode\u003ereadWithFilter\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["Creates a limiting filter on a column family with a regex.\n\nExplore further\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Use filters](/bigtable/docs/using-filters)\n\nCode sample \n\nJava\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n public static void filterLimitColFamilyRegex() {\n // TODO(developer): Replace these variables before running the sample.\n String projectId = \"my-project-id\";\n String instanceId = \"my-instance-id\";\n String tableId = \"mobile-time-series\";\n filterLimitColFamilyRegex(projectId, instanceId, tableId);\n }\n\n public static void filterLimitColFamilyRegex(\n String projectId, String instanceId, String tableId) {\n // A filter that matches cells whose column family satisfies the given regex\n Filter filter = new FamilyFilter(CompareOp.EQUAL, new RegexStringComparator(\"stats_.*$\"));\n Scan scan = new Scan().setFilter(filter);\n readWithFilter(projectId, instanceId, tableId, scan);\n }\n\nWhat's next\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]