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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 org.antlr.v4.runtime.ParserRuleContext;
public class StringIdentifier extends ConstIdentifier
{
private String _val;
public Expression rewriteExpression(String prefix) throws LanguageException {
return this;
}
public StringIdentifier(String val, ParseInfo parseInfo) {
super();
setInfo(val);
setParseInfo(parseInfo);
}
public StringIdentifier(ParserRuleContext ctx, String val, String filename) {
super();
setInfo(val);
setCtxValuesAndFilename(ctx, filename);
}
private void setInfo(String val) {
_val = val;
setDimensions(0, 0);
computeDataType();
setValueType(ValueType.STRING);
}
public String getValue(){
return _val;
}
public String toString(){
return _val;
}
@Override
public VariableSet variablesRead() {
return null;
}
@Override
public VariableSet variablesUpdated() {
return null;
}
@Override
public long getLongValue()
throws LanguageException
{
throw new LanguageException("Unsupported string-to-long conversion.");
}
}