/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.drill.common.expression; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.module.SimpleModule; import org.apache.drill.common.config.DrillConfig; import org.apache.drill.common.types.TypeProtos.MajorType; import com.fasterxml.jackson.annotation.JsonIgnore; import com.fasterxml.jackson.annotation.JsonProperty; import com.fasterxml.jackson.annotation.JsonPropertyOrder; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; @JsonPropertyOrder({ "type" }) public abstract class LogicalExpressionBase implements LogicalExpression { private final ExpressionPosition pos; protected LogicalExpressionBase(ExpressionPosition pos) { super(); this.pos = pos; } @Override public ExpressionPosition getPosition() { return pos; } protected void i(StringBuilder sb, int indent) { for (int i = 0; i < indent; i++){ sb.append(" "); } } @Override public MajorType getMajorType() { throw new UnsupportedOperationException(String.format("The type of %s doesn't currently support LogicalExpression.getDataType().", this.getClass().getCanonicalName())); } @JsonProperty("type") public String getDescription() { return this.getClass().getSimpleName(); } @JsonIgnore public int getSelfCost() { return 0; } @JsonIgnore public int getCumulativeCost() { int cost = this.getSelfCost(); for (LogicalExpression e : this) { cost += e.getCumulativeCost(); } return cost; } }