org.fluentjdbc.DatabaseUpdatable Maven / Gradle / Ivy

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A Java library used to execute JDBC statements and build SQL

There is a newer version: 0.5.3

package org.fluentjdbc;

import javax.annotation.CheckReturnValue;
import javax.annotation.Nullable;
import java.util.Collection;

/**
 * Interface to enforce consistent behavior of INSERT and UPDATE builders
 */
public interface DatabaseUpdatable> {
    /**
     * Adds the fieldName to the SQL statement and the value to the parameter list
     */
    @CheckReturnValue
    T setField(String field, @Nullable Object value);

    /**
     * Calls {@link #setField(String, Object)} for each fieldName and parameter
     */
    @CheckReturnValue
    T setFields(Collection fields, Collection values);

    /**
     * Adds the fieldName to the SQL statement and the value to the parameter list, unless value is null
     */
    @CheckReturnValue
    default T setFieldIfPresent(String field, @Nullable Object value) {
        if (value != null) {
            //noinspection ResultOfMethodCallIgnored
            setField(field, value);
        }
        //noinspection unchecked
        return (T)this;
    }
}