Guava optional of String or with prefix

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0

I have the following example code

public String getAliasSQL() {
    StringBuilder builder = new StringBuilder();
    if (field.getAlias().isPresent()) {
        builder.append(" AS ");
        builder.append(field.getAlias().get());
    }
    return builder.toString();
}

@Override
public Optional<String> getAlias() {
    return field.getAlias();
}

And I am wondering if it is possible to do this with a one line statement using the guava or() method or another simple trick.

Something like

public String getAliasSQL() {
    return field.getAlias().or("").prefixIfNotEmpty(" AS ");
}

But in a more readable way so it still would be clean code.

asked 25 secs ago

sandrozbinden

431

Guava optional of String or with prefix