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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.indexinglanguage.expressions;
import com.yahoo.document.DataType;
import com.yahoo.language.Language;
/**
* Sets the language in the execution context.
*
* @author Simon Thoresen Hult
*/
public final class SetLanguageExpression extends Expression {
public SetLanguageExpression() {
super(DataType.STRING);
}
@Override
protected void doExecute(ExecutionContext context) {
context.setLanguage(Language.fromLanguageTag(String.valueOf(context.getValue())));
}
@Override
protected void doVerify(VerificationContext context) {
// empty
}
@Override
public DataType createdOutputType() {
return null;
}
@Override
public String toString() {
return "set_language";
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof SetLanguageExpression)) return false;
return true;
}
@Override
public int hashCode() {
return getClass().hashCode();
}
}
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