| /* |
| * 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.sysds.parser; |
| |
| import org.apache.sysds.common.Types.DataType; |
| import org.apache.sysds.common.Types.ValueType; |
| |
| public class DataIdentifier extends Identifier |
| { |
| protected String _name; |
| protected String _valueTypeString; |
| |
| public DataIdentifier(DataIdentifier passed){ |
| setProperties(passed); |
| _name = passed.getName(); |
| _valueTypeString = passed.getValueType().toString(); |
| |
| // set location information |
| setParseInfo(passed); |
| } |
| |
| public DataIdentifier(String name){ |
| super(); |
| _name = name; |
| } |
| |
| public DataIdentifier(String name, DataType dt){ |
| this(name); |
| _dataType = dt; |
| } |
| |
| public DataIdentifier(String name, DataType dt, ValueType vt){ |
| this(name); |
| _dataType = dt; |
| _valueType = vt; |
| } |
| |
| public DataIdentifier(){ |
| _name = null; |
| } |
| |
| @Override |
| public Expression rewriteExpression(String prefix) { |
| DataIdentifier newId = new DataIdentifier(this); |
| String newIdName = prefix + _name; |
| newId.setName(newIdName); |
| return newId; |
| } |
| |
| public String getName(){ |
| return _name; |
| } |
| |
| public void setName(String name){ |
| _name = name; |
| } |
| |
| @Override |
| public String toString() { |
| return _name; |
| } |
| |
| @Override |
| public VariableSet variablesRead() { |
| VariableSet result = new VariableSet(); |
| result.addVariable(_name, this); |
| return result; |
| } |
| |
| @Override |
| public VariableSet variablesUpdated() { |
| return null; |
| } |
| |
| /** |
| * Method to specify if an expression returns multiple outputs. |
| * This method must be overridden by all child classes. |
| * |
| * @return true if expression returns multiple outputs |
| */ |
| public boolean multipleReturns() { |
| throw new LanguageException("multipleReturns() must be overridden in the subclass."); |
| } |
| |
| @Override |
| public boolean equals(Object that) { |
| if( !(that instanceof DataIdentifier) ) |
| return false; |
| DataIdentifier target = (DataIdentifier)that; |
| if(getName()!=null && !getName().equals(target.getName())) |
| return false; |
| if(getDataType()!=null && !getDataType().equals(target.getDataType())) |
| return false; |
| if(getValueType() != null && !getValueType().equals(target.getValueType())) |
| return false; |
| if(getFileFormat()!= null && getFileFormat() != target.getFileFormat()) |
| return false; |
| if(!(this.getDim1() == target.getDim1())) |
| return false; |
| if(!(this.getDim2() == target.getDim2())) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| } |