org.apache.calcite.adapter.enumerable.ReflectiveCallNotNullImplementor Java Examples
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org.apache.calcite.adapter.enumerable.ReflectiveCallNotNullImplementor.
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Example #1
Source File: TableFunctionImpl.java From calcite with Apache License 2.0 | 6 votes |
private static CallImplementor createImplementor(final Method method) { return RexImpTable.createImplementor( new ReflectiveCallNotNullImplementor(method) { public Expression implement(RexToLixTranslator translator, RexCall call, List<Expression> translatedOperands) { Expression expr = super.implement(translator, call, translatedOperands); final Class<?> returnType = method.getReturnType(); if (QueryableTable.class.isAssignableFrom(returnType)) { Expression queryable = Expressions.call( Expressions.convert_(expr, QueryableTable.class), BuiltInMethod.QUERYABLE_TABLE_AS_QUERYABLE.method, Expressions.call(DataContext.ROOT, BuiltInMethod.DATA_CONTEXT_GET_QUERY_PROVIDER.method), Expressions.constant(null, SchemaPlus.class), Expressions.constant(call.getOperator().getName(), String.class)); expr = Expressions.call(queryable, BuiltInMethod.QUERYABLE_AS_ENUMERABLE.method); } else { expr = Expressions.call(expr, BuiltInMethod.SCANNABLE_TABLE_SCAN.method, DataContext.ROOT); } return expr; } }, NullPolicy.NONE, false); }
Example #2
Source File: CollectionsFunctions.java From mat-calcite-plugin with Apache License 2.0 | 4 votes |
BaseImplementableFunction(Method method) { super(method); implementor = RexImpTable.createImplementor(new ReflectiveCallNotNullImplementor(method), NullPolicy.NONE, false); }
Example #3
Source File: ScalarFunctionImpl.java From calcite with Apache License 2.0 | 4 votes |
private static CallImplementor createImplementor(final Method method) { final NullPolicy nullPolicy = getNullPolicy(method); return RexImpTable.createImplementor( new ReflectiveCallNotNullImplementor(method), nullPolicy, false); }