Examples with CallImplementor org.apache.calcite.adapter.enumerable.CallImplementor used on opensource projects

Example 1 with CallImplementor

use of org.apache.calcite.adapter.enumerable.CallImplementor in project beam by apache.

the class ZetaSqlScalarFunctionImpl method create.

/**
 * Creates {@link org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.schema.Function} from
 * given method. When {@code eval} method does not suit, {@code null} is returned.
 *
 * @param method method that is used to implement the function
 * @param functionGroup ZetaSQL function group identifier. Different function groups may have
 *     divergent translation paths.
 * @return created {@link Function} or null
 */
public static Function create(Method method, String functionGroup, String jarPath) {
    validateMethod(method);
    CallImplementor implementor = createImplementor(method);
    return new ZetaSqlScalarFunctionImpl(method, implementor, functionGroup, jarPath);
}

Example 2 with CallImplementor

use of org.apache.calcite.adapter.enumerable.CallImplementor in project beam by apache.

the class ScalarFunctionImpl method create.

/**
 * Creates {@link org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.schema.Function} from
 * given method. When {@code eval} method does not suit, {@code null} is returned.
 *
 * @param method method that is used to implement the function
 * @param jarPath Path to jar that contains the method.
 * @return created {@link Function} or null
 */
public static Function create(Method method, String jarPath) {
    validateMethod(method);
    CallImplementor implementor = createImplementor(method);
    return new ScalarFunctionImpl(method, implementor, jarPath);
}

Example 3 with CallImplementor

use of org.apache.calcite.adapter.enumerable.CallImplementor in project calcite by apache.

the class TableFunctionImpl method create.

/**
 * Creates a {@link TableFunctionImpl} from a method.
 */
public static TableFunction create(final Method method) {
    if (!Modifier.isStatic(method.getModifiers())) {
        Class clazz = method.getDeclaringClass();
        if (!classHasPublicZeroArgsConstructor(clazz)) {
            throw RESOURCE.requireDefaultConstructor(clazz.getName()).ex();
        }
    }
    final Class<?> returnType = method.getReturnType();
    if (!QueryableTable.class.isAssignableFrom(returnType) && !ScannableTable.class.isAssignableFrom(returnType)) {
        return null;
    }
    CallImplementor implementor = createImplementor(method);
    return new TableFunctionImpl(method, implementor);
}