Java Primitive类代码示例

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
public Type createSyntheticType(List<Type> types) {
    if (types.isEmpty()) {
        // Unit is a pre-defined synthetic type to be used when there are 0
        // fields. Because all instances are the same, we use a singleton.
        return Unit.class;
    }
    final String name =
            "Record" + types.size() + "_" + syntheticTypes.size();
    final SyntheticRecordType syntheticType =
            new SyntheticRecordType(null, name);
    for (final Ord<Type> ord : Ord.zip(types)) {
        syntheticType.fields.add(
                new RecordFieldImpl(
                        syntheticType,
                        "f" + ord.i,
                        ord.e,
                        !Primitive.is(ord.e),
                        Modifier.PUBLIC));
    }
    return register(syntheticType);
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
private static Object convert(Object o, Class clazz) {
  if (o == null) {
    return null;
  }
  Primitive primitive = Primitive.of(clazz);
  if (primitive != null) {
    clazz = primitive.boxClass;
  } else {
    primitive = Primitive.ofBox(clazz);
  }
  if (clazz.isInstance(o)) {
    return o;
  }
  if (o instanceof Date && primitive != null) {
    o = ((Date) o).getTime() / DateTimeUtils.MILLIS_PER_DAY;
  }
  if (o instanceof Number && primitive != null) {
    return primitive.number((Number) o);
  }
  return o;
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
/** Returns e.g. ", ignoreNulls". */
private static StringBuilder safeArgList(StringBuilder buff, Method method) {
  for (Ord<Class<?>> t : Ord.zip(method.getParameterTypes())) {
    if (Primitive.is(t.e)) {
      buff.append(", a").append(t.i);
    } else if (RexNode.class.isAssignableFrom(t.e)) {
      // For RexNode, convert to string, because equals does not look deep.
      //   a1 == null ? "" : a1.toString()
      buff.append(", a").append(t.i).append(" == null ? \"\" : a")
          .append(t.i).append(".toString()");
    } else {
      buff.append(", ") .append(NullSentinel.class.getName())
          .append(".mask(a").append(t.i).append(")");
    }
  }
  return buff;
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
private RelDataType copySimpleType(
    RelDataType type,
    boolean nullable) {
  if (type instanceof JavaType) {
    JavaType javaType = (JavaType) type;
    if (SqlTypeUtil.inCharFamily(javaType)) {
      return new JavaType(
          javaType.clazz,
          nullable,
          javaType.charset,
          javaType.collation);
    } else {
      return new JavaType(
          nullable
              ? Primitive.box(javaType.clazz)
              : Primitive.unbox(javaType.clazz),
          nullable);
    }
  } else {
    // REVIEW: RelCrossType if it stays around; otherwise get rid of
    // this comment
    return type;
  }
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
public Type createSyntheticType(List<Type> types) {
  if (types.isEmpty()) {
    // Unit is a pre-defined synthetic type to be used when there are 0
    // fields. Because all instances are the same, we use a singleton.
    return Unit.class;
  }
  final String name =
      "Record" + types.size() + "_" + syntheticTypes.size();
  final SyntheticRecordType syntheticType =
      new SyntheticRecordType(null, name);
  for (final Ord<Type> ord : Ord.zip(types)) {
    syntheticType.fields.add(
        new RecordFieldImpl(
            syntheticType,
            "f" + ord.i,
            ord.e,
            !Primitive.is(ord.e),
            Modifier.PUBLIC));
  }
  return register(syntheticType);
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
private JavaRowFormat format() {
  int fieldCount = getRowType().getFieldCount();
  if (fieldCount == 0) {
    return JavaRowFormat.LIST;
  }
  if (Object[].class.isAssignableFrom(elementType)) {
    return fieldCount == 1 ? JavaRowFormat.SCALAR : JavaRowFormat.ARRAY;
  }
  if (Row.class.isAssignableFrom(elementType)) {
    return JavaRowFormat.ROW;
  }
  if (fieldCount == 1 && (Object.class == elementType
        || Primitive.is(elementType)
        || Number.class.isAssignableFrom(elementType))) {
    return JavaRowFormat.SCALAR;
  }
  return JavaRowFormat.CUSTOM;
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
public ObjectArrayRowBuilder(
        ResultSet resultSet, Primitive[] primitives, int[] types)
        throws SQLException {
    this.resultSet = resultSet;
    this.primitives = primitives;
    this.types = types;
    this.columnCount = resultSet.getMetaData().getColumnCount();
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
public static Function1<ResultSet, Function0<Object[]>> factory(
        final List<Pair<Primitive, Integer>> list) {
    return new Function1<ResultSet, Function0<Object[]>>() {
        public Function0<Object[]> apply(ResultSet rs) {
            try {
                return new ObjectArrayRowBuilder(
                        rs,
                        Pair.left(list).toArray(new Primitive[list.size()]),
                        IntList.toArray(Pair.right(list)));
            } catch (SQLException e) {
                throw new RuntimeException(e);
            }
        }
    };
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
private List<Pair<Primitive, Integer>> fieldClasses(
        final JavaTypeFactory typeFactory) {
    final RelDataType rowType = getProtoRowType().apply(typeFactory);
    return Lists.transform(rowType.getFieldList(),
            new Function<RelDataTypeField, Pair<Primitive, Integer>>() {
                public Pair<Primitive, Integer> apply(RelDataTypeField field) {
                    RelDataType type = field.getType();
                    Class clazz = (Class) typeFactory.getJavaClass(type);
                    return Pair.of(Util.first(Primitive.of(clazz), Primitive.OTHER),
                            type.getSqlTypeName().getJdbcOrdinal());
                }
            });
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
@Override
public RelWriter explainTerms(RelWriter pw) {

    return super.explainTerms(pw)
            .item("ctx", context == null ? "" : String.valueOf(context.id) + "@" + context.realization)
            .item("fields", Primitive.asList(fields));
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
@Test public void testIsAssignableFrom() {
  assertTrue(Primitive.INT.assignableFrom(Primitive.BYTE));
  assertTrue(Primitive.INT.assignableFrom(Primitive.SHORT));
  assertTrue(Primitive.INT.assignableFrom(Primitive.CHAR));
  assertTrue(Primitive.INT.assignableFrom(Primitive.INT));
  assertTrue(Primitive.INT.assignableFrom(Primitive.SHORT));
  assertFalse(Primitive.INT.assignableFrom(Primitive.LONG));

  assertTrue(Primitive.LONG.assignableFrom(Primitive.BYTE));
  assertTrue(Primitive.LONG.assignableFrom(Primitive.SHORT));
  assertTrue(Primitive.LONG.assignableFrom(Primitive.CHAR));
  assertTrue(Primitive.LONG.assignableFrom(Primitive.INT));
  assertTrue(Primitive.LONG.assignableFrom(Primitive.LONG));

  // SHORT and CHAR cannot be assigned to each other

  assertTrue(Primitive.SHORT.assignableFrom(Primitive.BYTE));
  assertTrue(Primitive.SHORT.assignableFrom(Primitive.SHORT));
  assertFalse(Primitive.SHORT.assignableFrom(Primitive.CHAR));
  assertFalse(Primitive.SHORT.assignableFrom(Primitive.INT));
  assertFalse(Primitive.SHORT.assignableFrom(Primitive.LONG));

  assertFalse(Primitive.CHAR.assignableFrom(Primitive.BYTE));
  assertFalse(Primitive.CHAR.assignableFrom(Primitive.SHORT));
  assertTrue(Primitive.CHAR.assignableFrom(Primitive.CHAR));
  assertFalse(Primitive.CHAR.assignableFrom(Primitive.INT));
  assertFalse(Primitive.CHAR.assignableFrom(Primitive.LONG));

  // cross-family assignments

  assertFalse(Primitive.BOOLEAN.assignableFrom(Primitive.INT));
  assertFalse(Primitive.INT.assignableFrom(Primitive.BOOLEAN));
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
/** Test for {@link Primitive#permute(Object, int[])}. */
@Test public void testPermute() {
  char[] chars = {'a', 'b', 'c', 'd', 'e', 'f', 'g'};
  int[] sources = {1, 2, 3, 4, 5, 6, 0};
  final Object permute = Primitive.CHAR.permute(chars, sources);
  assertTrue(permute instanceof char[]);
  assertEquals("bcdefga", new String((char[]) permute));
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
/** Test for {@link Primitive#sortArray(Object)}. */
@Test public void testArraySort() {
  char[] chars = {'m', 'o', 'n', 'o', 'l', 'a', 'k', 'e'};
  Primitive.CHAR.sortArray(chars);
  assertEquals("[a, e, k, l, m, n, o, o]",
      Primitive.CHAR.arrayToString(chars));

  // mixed true and false
  boolean[] booleans0 = {true, false, true, true, false};
  Primitive.BOOLEAN.sortArray(booleans0);
  assertEquals("[false, false, true, true, true]",
      Primitive.BOOLEAN.arrayToString(booleans0));

  // all false
  boolean[] booleans1 = {false, false, false, false, false};
  Primitive.BOOLEAN.sortArray(booleans1);
  assertEquals("[false, false, false, false, false]",
      Primitive.BOOLEAN.arrayToString(booleans1));

  // all true
  boolean[] booleans2 = {true, true, true, true, true};
  Primitive.BOOLEAN.sortArray(booleans2);
  assertEquals("[true, true, true, true, true]",
      Primitive.BOOLEAN.arrayToString(booleans2));

  // empty
  boolean[] booleans3 = {};
  Primitive.BOOLEAN.sortArray(booleans3);
  assertEquals("[]", Primitive.BOOLEAN.arrayToString(booleans3));

  // ranges specified
  boolean[] booleans4 = {true, true, false, false, true, false, false};
  Primitive.BOOLEAN.sortArray(booleans4, 1, 6);
  assertEquals("[true, false, false, false, true, true, false]",
      Primitive.BOOLEAN.arrayToString(booleans4));
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
/** Creates an initial collector of the appropriate kind. */
public static Collector create(Space space, int sketchThreshold) {
  final List<Integer> columnOrdinalList = space.columnOrdinals.asList();
  if (columnOrdinalList.size() == 1) {
    return new SingletonCollector(space, columnOrdinalList.get(0),
        sketchThreshold);
  } else {
    return new CompositeCollector(space,
        (int[]) Primitive.INT.toArray(columnOrdinalList), sketchThreshold);
  }
}
 

import org.apache.calcite.linq4j.tree.Primitive; //导入依赖的package包/类
private static Enumerable toEnumerable(final Object o) {
  if (o.getClass().isArray()) {
    if (o instanceof Object[]) {
      return Linq4j.asEnumerable((Object[]) o);
    } else {
      return Linq4j.asEnumerable(Primitive.asList(o));
    }
  }
  if (o instanceof Iterable) {
    return Linq4j.asEnumerable((Iterable) o);
  }
  throw new RuntimeException(
      "Cannot convert " + o.getClass() + " into a Enumerable");
}