Examples of ch.agent.crnickl.api.Schema

ch.agent.crnickl.api.Schema
A Schema defines the structure of a {@link Chronicle}. It could have been named "ChronicleDefinition" but because of its importance, a simpler name was preferred. A schema defines a number of {@link Attribute}s and a number of {@link Series}. Series can themselves have attributes, as defined in their {@link SeriesDefinition}.
A schema can extend and override elements of another schema. Because of this, schemas form a tree structure (more precisely a forest). @author Jean-Paul Vetterli @version 1.0.0

    }
  }
  
  public void test_create_sub_chronicle_with_schema_inherited() {
    try {
      Schema schema = db.getSchemas("schema5").iterator().next();
      UpdatableChronicle chro = db.getChronicle("bt.schema5chro", true).edit();
      assertEquals(schema, chro.getSchema(false));
      chro.createChronicle("sub", false, "sub test", null, null).applyUpdates();
      Chronicle sub = db.getChronicle("bt.schema5chro.sub", true);
      assertEquals(schema, sub.getSchema(true));

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  }
  
  public void test_define_series_in_schema1() {
    try {
      UpdatableSchema schema1 = db.getSchemas("schema1").iterator().next().edit();
      Schema schema2 = db.getSchemas("schema2").iterator().next();
      schema1.addSeries(1);
      schema1.setSeriesName(1, "foo");
      schema1.setSeriesDescription(1, "foo series");
      schema1.setSeriesTimeDomain(1, Workday.DOMAIN);
      schema1.setSeriesType(1, db.getValueType("numeric"));
      schema1.addAttribute(1, 6);
      schema1.setAttributeProperty(1, 6, db.getProperty("prop2", true));
      schema1.setAttributeDefault(1, 6, "t2v2");
      schema1.applyUpdates();
      assertEquals("foo", schema1.getSeriesDefinition(1, true).getName());
      assertEquals("foo series", schema1.getSeriesDefinition(1, true).getDescription());
      assertEquals(null, schema2.getSeriesDefinition(1, false));
    } catch (Exception e) {
      fail(e.getMessage());
    }
  }

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  public void test_create_schema4_based_on_schema1a_and_override_attribute() {
    UpdatableSchema schema1 = null;
    try {
      UpdatableSchema schema4 = db.createSchema("schema4", "schema1a");
      Schema s = schema4.resolve();
      assertEquals("prop1", s.getAttributeDefinition(1, true).getName());
      schema4.addAttribute(1);
      schema4.eraseAttribute(1);
      assertEquals(true, schema4.getAttributeDefinition(1, true).isErasing());
      assertEquals("fou", s.getSeriesDefinition(1, true).getName());
      schema4.setAttributeProperty(1, db.getProperty("prop1", true));
      schema4.setAttributeDefault(1, "t1v1");
      schema4.applyUpdates();
      schema1 = db.getSchemas("schema1a").iterator().next().edit();
      schema1.setBase(schema4);

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  }
  
  public void test_add_series_to_schema4_but_dont_apply() {
    try {
      UpdatableSchema schema4 = db.getUpdatableSchemas("schema4").iterator().next();
      Schema s = schema4.resolve();
      assertEquals("fou", s.getSeriesDefinition(1, true).getName());
      schema4.addSeries(1);
      schema4.eraseSeries(1);
    } catch (Exception e) {
      fail(e.getMessage());
    }

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    }
  }
  
  public void test_delete_series_in_actual_use_fails() {
    try {
      Schema schema = db.getSchemas("schema1a").iterator().next();
      UpdatableChronicle chro = db.getTopChronicle().edit().createChronicle("schema1achro", false, "test chronicle", null, schema);
      chro.applyUpdates();
      UpdatableSeries<Double> ser = db.getUpdatableSeries("bt.schema1achro.fou", true);
      ser.setValue(Workday.DOMAIN.time("2011-06-30"), 42.);
      ser.applyUpdates();
      // erase the series from the schema (should fail, of course)
      UpdatableSchema sch1 = schema.edit();
      sch1.deleteSeries(1);
      sch1.applyUpdates();
      expectException();
    } catch (Exception e) {
      assertException(e, null, "D30150");

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    }
  }
  
  public void test_rename_series_in_actual_use_okay() {
    try {
      Schema schema = db.getSchemas("schema1a").iterator().next();
      Series<Double> ser = db.getSeries("bt.schema1achro.fou", true);
      assertEquals(42., ser.getValue(Workday.DOMAIN.time("2011-06-30")));
      // renaming the series should be okay 
      UpdatableSchema sch1 = schema.edit();
      //sch1.setSeriesName(1, "fooo"); next line should be equivalent
      sch1.setAttributeDefault(1, 1, "fooo");
      sch1.applyUpdates();
      ser = db.getSeries("bt.schema1achro.fooo", true);
      assertEquals(42., ser.getValue(Workday.DOMAIN.time("2011-06-30")));

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    }
  }
  
  public void test_modify_time_domain_of_series_fails() {
    try {
      Schema schema = db.getSchemas("schema1a").iterator().next();
      Series<Double> ser = db.getSeries("bt.schema1achro.fooo", true);
      assertEquals(42., ser.getValue(Workday.DOMAIN.time("2011-06-30")));
      // changing the time domain should fail 
      UpdatableSchema sch1 = schema.edit();
      sch1.setSeriesTimeDomain(1, DateTime.DOMAIN);
      sch1.applyUpdates();
      expectException();
    } catch (Exception e) {
      assertException(e, D.D30105, D.D30149);

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    }
  }
  
  public void test_update_attribute_value_okay() {
    try {
      Schema schema = db.getSchemas("schema1a").iterator().next();
      Series<Double> ser = db.getSeries("bt.schema1achro.fooo", true);
      UpdatableSchema sch1 = schema.edit();
      sch1.addAttribute(7);
      sch1.setAttributeDefault(7, "foo");
      sch1.setAttributeProperty(7, db.getProperty("prop3", true));
      sch1.applyUpdates();

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    }
  }
  
  public void test_series_attribute_overrides_chronicle_attribute() {
    try {
      Schema schema = db.getSchemas("schema1a").iterator().next();
      UpdatableSchema sch1 = schema.edit();
      sch1.addAttribute(1, 5);
      sch1.setAttributeDefault(1, 5, "bar");
      sch1.setAttributeProperty(1, 5, db.getProperty("prop3", true));
      sch1.applyUpdates();

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    }
  }


  public void test_delete_series_in_use_via_base_schema() {
    try {
      Schema schema = db.getSchemas("schema4").iterator().next();
      UpdatableChronicle chro = db.getTopChronicle().edit().createChronicle("schema4chro", false, "test chronicle", null, schema);
      chro.applyUpdates();
      UpdatableSeries<Double> ser = db.getUpdatableSeries("bt.schema4chro.fooo", true);
      ser.applyUpdates();
      // note that the series is deleted in the base schema

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Related Classes of ch.agent.crnickl.api.Schema

ch.agent.crnickl.impl.ChronicleImpl

ch.agent.crnickl.impl.DatabaseBackendImpl

ch.agent.crnickl.impl.DatabaseCacheImpl

ch.agent.crnickl.impl.SchemaUpdatePolicyImpl

ch.agent.crnickl.impl.SchemaUpdatePolicyImpl$Visitor

ch.agent.crnickl.impl.UpdatableChronicleImpl

ch.agent.crnickl.impl.UpdatableSchemaImpl

ch.agent.crnickl.jdbc.WriteMethodsForChroniclesAndSeries

ch.agent.crnickl.jdbc.WriteMethodsForSchema

ch.agent.crnickl.junit.T015_SchemaChronicleSeriesValueTest

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