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• payloadbuilder-api
• 1.0.5.2
• source code
• IDatasourceOptions.java

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se.kuseman.payloadbuilder.api.catalog.IDatasourceOptions Maven / Gradle / Ivy

package se.kuseman.payloadbuilder.api.catalog;

import java.util.List;

import se.kuseman.payloadbuilder.api.QualifiedName;
import se.kuseman.payloadbuilder.api.execution.IExecutionContext;
import se.kuseman.payloadbuilder.api.execution.ValueVector;

/**
 * Definition of options provided to data sources. These are options within a WITH statement in table sources
 */
public interface IDatasourceOptions
{
    /** Return the vector batch size. This is simply a convenience method for {@link #getOption(String, IExecutionContext)} with option name batch_size */
    int getBatchSize(IExecutionContext context);

    /** Return value for provided option name. If no option found with provided name null is returned */
    default ValueVector getOption(QualifiedName name, IExecutionContext context)
    {
        for (Option option : getOptions())
        {
            if (option.getOption()
                    .equalsIgnoreCase(name))
            {
                return option.getValueExpression()
                        .eval(context);
            }
        }
        return null;
    }

    /** Return options */
    List getOptions();
}