| /* |
| * 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.phoenix.parse; |
| |
| import java.sql.SQLException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.phoenix.compile.ColumnResolver; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| /** |
| * Node representing an explicit table reference in the FROM clause of SQL |
| * |
| * |
| * @since 0.1 |
| */ |
| public class NamedTableNode extends ConcreteTableNode { |
| |
| private final List<ColumnDef> dynColumns; |
| |
| public static NamedTableNode create (String alias, TableName name, List<ColumnDef> dynColumns) { |
| return new NamedTableNode(alias, name, dynColumns); |
| } |
| |
| public static NamedTableNode create (TableName name) { |
| return new NamedTableNode(null, name, Collections.<ColumnDef>emptyList()); |
| } |
| |
| public static NamedTableNode create (String schemaName, String tableName) { |
| return new NamedTableNode(null, TableName.create(schemaName, tableName), Collections.<ColumnDef>emptyList()); |
| } |
| |
| NamedTableNode(String alias, TableName name) { |
| super(alias, name); |
| dynColumns = Collections.<ColumnDef> emptyList(); |
| } |
| |
| NamedTableNode(String alias, TableName name, List<ColumnDef> dynColumns) { |
| super(alias, name); |
| if (dynColumns != null) { |
| this.dynColumns = ImmutableList.copyOf(dynColumns); |
| } else { |
| this.dynColumns = Collections.<ColumnDef> emptyList(); |
| } |
| } |
| |
| @Override |
| public <T> T accept(TableNodeVisitor<T> visitor) throws SQLException { |
| return visitor.visit(this); |
| } |
| |
| public List<ColumnDef> getDynamicColumns() { |
| return dynColumns; |
| } |
| |
| @Override |
| public void toSQL(ColumnResolver resolver, StringBuilder buf) { |
| buf.append(this.getName().toString()); |
| if (!dynColumns.isEmpty()) { |
| buf.append('('); |
| for (ColumnDef def : dynColumns) { |
| buf.append(def); |
| buf.append(','); |
| } |
| buf.setLength(buf.length()-1); |
| buf.append(')'); |
| } |
| if (this.getAlias() != null) buf.append(" " + this.getAlias()); |
| buf.append(' '); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = super.hashCode(); |
| result = prime * result + ((dynColumns == null) ? 0 : dynColumns.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) return true; |
| if (!super.equals(obj)) return false; |
| if (getClass() != obj.getClass()) return false; |
| NamedTableNode other = (NamedTableNode)obj; |
| if (dynColumns == null) { |
| if (other.dynColumns != null) return false; |
| } else if (!dynColumns.equals(other.dynColumns)) return false; |
| return true; |
| } |
| } |
| |