Membaca dengan filter (HBase)
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[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code sample demonstrates how to read and filter data within a Bigtable table using Java.\u003c/p\u003e\n"],["\u003cp\u003eIt utilizes a \u003ccode\u003eValueFilter\u003c/code\u003e with a regular expression (\u003ccode\u003eRegexStringComparator\u003c/code\u003e) to filter rows based on specific value patterns (e.g., "PQ2A.*").\u003c/p\u003e\n"],["\u003cp\u003eThe example shows how to set up a \u003ccode\u003eScan\u003c/code\u003e operation with the defined filter and iterate through the matching results using a \u003ccode\u003eResultScanner\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe provided \u003ccode\u003ereadFilter\u003c/code\u003e function takes the project ID, instance ID, and table ID as parameters, which are required to access and filter data in the targeted Bigtable table.\u003c/p\u003e\n"],["\u003cp\u003eThe sample code includes instructions on how to set up the Bigtable client library, and authenticate using Application Default Credentials.\u003c/p\u003e\n"]]],[],null,["Read a row with a filter.\n\nExplore further\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Read examples](/bigtable/docs/reading-data)\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\n /**\n * Example of filtering row contents using filters.\n */\n public static void readFilter() {\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 readFilter(projectId, instanceId, tableId);\n }\n\n public static void readFilter(String projectId, String instanceId, String tableId) {\n // Initialize client that will be used to send requests. This client only needs to be created\n // once, and can be reused for multiple requests.\n try (Connection connection = BigtableConfiguration.connect(projectId, instanceId)) {\n Table table = connection.getTable(TableName.valueOf(tableId));\n\n ValueFilter valueFilter =\n new ValueFilter(CompareOp.EQUAL, new RegexStringComparator(\"PQ2A.*\"));\n Scan scan = new Scan().setFilter(valueFilter);\n\n ResultScanner rows = table.getScanner(scan);\n\n for (Result row : rows) {\n printRow(row);\n }\n } catch (IOException e) {\n System.out.println(\n \"Unable to initialize service client, as a network error occurred: \\n\" + e.toString());\n }\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)."]]