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Declarative Machine Learning
/*
* 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.sysml.parser;
import java.util.HashMap;
import java.util.Set;
public class VariableSet
{
private HashMap _variables;
public VariableSet(){
_variables = new HashMap();
}
public VariableSet( VariableSet vs )
{
_variables = new HashMap();
if (vs != null) {
HashMap vars = vs.getVariables();
_variables.putAll(vars);
}
}
public void addVariable(String name, DataIdentifier id)
{
_variables.put(name,id);
}
public void addVariables(VariableSet vs)
{
if (vs != null) {
HashMap vars = vs.getVariables();
_variables.putAll(vars);
}
}
public void removeVariables(VariableSet vs)
{
if( vs != null ){
Set vars = vs.getVariables().keySet();
for (String var : vars)
_variables.remove(var);
}
}
public boolean containsVariable(String name){
return _variables.containsKey(name);
}
public DataIdentifier getVariable(String name){
return _variables.get(name);
}
public Set getVariableNames(){
return _variables.keySet();
}
public HashMap getVariables(){
return _variables;
}
public String toString(){
StringBuilder sb = new StringBuilder();
for (String var : _variables.keySet()){
sb.append(var + ",");
}
return sb.toString();
}
}