第16章 ドメインオブジェクトのインデックス構造へのマッピング

public class DateSplitBridge implements FieldBridge {
    private final static TimeZone GMT = TimeZone.getTimeZone("GMT");

    public void set(String name,
                    Object value,
                    Document document,
                    LuceneOptions luceneOptions) {
        Date date = (Date) value;
        Calendar cal = GregorianCalendar.getInstance(GMT);
        cal.setTime(date);
        int year = cal.get(Calendar.YEAR);
        int month = cal.get(Calendar.MONTH) + 1;
        int day = cal.get(Calendar.DAY_OF_MONTH);

        // set year
        luceneOptions.addFieldToDocument(
            name + ".year",
            String.valueOf(year),
            document);

        // set month and pad it if needed
        luceneOptions.addFieldToDocument(
            name + ".month",
            month < 10 ? "0" : "" + String.valueOf(month),
            document);

        // set day and pad it if needed
        luceneOptions.addFieldToDocument(
            name + ".day",
            day < 10 ? "0" : "" + String.valueOf(day),
            document);
    }
}

//property
@FieldBridge(impl = DateSplitBridge.class)
private Date date;

public class DateSplitBridge implements FieldBridge {
    private final static TimeZone GMT = TimeZone.getTimeZone("GMT");

    public void set(String name,
                    Object value,
                    Document document,
                    LuceneOptions luceneOptions) {
        Date date = (Date) value;
        Calendar cal = GregorianCalendar.getInstance(GMT);
        cal.setTime(date);
        int year = cal.get(Calendar.YEAR);
        int month = cal.get(Calendar.MONTH) + 1;
        int day = cal.get(Calendar.DAY_OF_MONTH);

        // set year
        luceneOptions.addFieldToDocument(
            name + ".year",
            String.valueOf(year),
            document);

        // set month and pad it if needed
        luceneOptions.addFieldToDocument(
            name + ".month",
            month < 10 ? "0" : "" + String.valueOf(month),
            document);

        // set day and pad it if needed
        luceneOptions.addFieldToDocument(
            name + ".day",
            day < 10 ? "0" : "" + String.valueOf(day),
            document);
    }
}

//property
@FieldBridge(impl = DateSplitBridge.class)
private Date date;

/**
 * Padding Integer bridge.
 * All numbers will be padded with 0 to match 5 digits
 *
 * @author Emmanuel Bernard
 */
public class PaddedIntegerBridge implements StringBridge {

    private int PADDING = 5;

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > PADDING)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length() ; padIndex < PADDING ; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }
}

/**
 * Padding Integer bridge.
 * All numbers will be padded with 0 to match 5 digits
 *
 * @author Emmanuel Bernard
 */
public class PaddedIntegerBridge implements StringBridge {

    private int PADDING = 5;

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > PADDING)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length() ; padIndex < PADDING ; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }
}

public class PaddedIntegerBridge implements TwoWayStringBridge, ParameterizedBridge {

    public static String PADDING_PROPERTY = "padding";
    private int padding = 5; //default

    public void setParameterValues(Map parameters) {
        Object padding = parameters.get(PADDING_PROPERTY);
        if (padding != null) this.padding = (Integer) padding;
    }

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > padding)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length(); padIndex < padding; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }

    public Object stringToObject(String stringValue) {
        return new Integer(stringValue);
    }
}


@FieldBridge(impl = PaddedIntegerBridge.class,
             params = @Parameter(name = "padding", value = "10"))
private Integer id;

public class PaddedIntegerBridge implements TwoWayStringBridge, ParameterizedBridge {

    public static String PADDING_PROPERTY = "padding";
    private int padding = 5; //default

    public void setParameterValues(Map parameters) {
        Object padding = parameters.get(PADDING_PROPERTY);
        if (padding != null) this.padding = (Integer) padding;
    }

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > padding)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length(); padIndex < padding; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }

    public Object stringToObject(String stringValue) {
        return new Integer(stringValue);
    }
}


@FieldBridge(impl = PaddedIntegerBridge.class,
             params = @Parameter(name = "padding", value = "10"))
private Integer id;

public class PaddedIntegerBridge implements StringBridge, ParameterizedBridge {

    public static String PADDING_PROPERTY = "padding";
    private int padding = 5; //default

    public void setParameterValues(Map <String,String> parameters) {
        String padding = parameters.get(PADDING_PROPERTY);
        if (padding != null) this.padding = Integer.parseInt(padding);
    }

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > padding)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length() ; padIndex < padding ; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }
}

//property
@FieldBridge(impl = PaddedIntegerBridge.class,
             params = @Parameter(name = "padding", value = "10")
            )
private Integer length;

public class PaddedIntegerBridge implements StringBridge, ParameterizedBridge {

    public static String PADDING_PROPERTY = "padding";
    private int padding = 5; //default

    public void setParameterValues(Map <String,String> parameters) {
        String padding = parameters.get(PADDING_PROPERTY);
        if (padding != null) this.padding = Integer.parseInt(padding);
    }

    public String objectToString(Object object) {
        String rawInteger = ((Integer) object).toString();
        if (rawInteger.length() > padding)
            throw new IllegalArgumentException("Try to pad on a number too big");
        StringBuilder paddedInteger = new StringBuilder();
        for (int padIndex = rawInteger.length() ; padIndex < padding ; padIndex++) {
            paddedInteger.append('0');
        }
        return paddedInteger.append(rawInteger).toString();
    }
}

//property
@FieldBridge(impl = PaddedIntegerBridge.class,
             params = @Parameter(name = "padding", value = "10")
            )
private Integer length;

@Indexed
@ClassBridge(name = "branchnetwork",
             store = Store.YES,
             impl = CatFieldsClassBridge.class,
             params = @Parameter(name = "sepChar", value = ""))
public class Department {
    private int id;
    private String network;
    private String branchHead;
    private String branch;
    private Integer maxEmployees;
}

public class CatFieldsClassBridge implements FieldBridge, ParameterizedBridge {
    private String sepChar;

    public void setParameterValues(Map parameters) {
        this.sepChar = (String) parameters.get("sepChar");
    }

    public void set(String name,
                    Object value,
                    Document document,
                    LuceneOptions luceneOptions) {

        Department dep = (Department) value;
        String fieldValue1 = dep.getBranch();
        if (fieldValue1 == null) {
            fieldValue1 = "";
        }
        String fieldValue2 = dep.getNetwork();
        if (fieldValue2 == null) {
            fieldValue2 = "";
        }
        String fieldValue = fieldValue1 + sepChar + fieldValue2;
        Field field = new Field(name, fieldValue, luceneOptions.getStore(),
            luceneOptions.getIndex(), luceneOptions.getTermVector());
        field.setBoost(luceneOptions.getBoost());
        document.add(field);
   }
}

@Indexed
@ClassBridge(name = "branchnetwork",
             store = Store.YES,
             impl = CatFieldsClassBridge.class,
             params = @Parameter(name = "sepChar", value = ""))
public class Department {
    private int id;
    private String network;
    private String branchHead;
    private String branch;
    private Integer maxEmployees;
}

public class CatFieldsClassBridge implements FieldBridge, ParameterizedBridge {
    private String sepChar;

    public void setParameterValues(Map parameters) {
        this.sepChar = (String) parameters.get("sepChar");
    }

    public void set(String name,
                    Object value,
                    Document document,
                    LuceneOptions luceneOptions) {

        Department dep = (Department) value;
        String fieldValue1 = dep.getBranch();
        if (fieldValue1 == null) {
            fieldValue1 = "";
        }
        String fieldValue2 = dep.getNetwork();
        if (fieldValue2 == null) {
            fieldValue2 = "";
        }
        String fieldValue = fieldValue1 + sepChar + fieldValue2;
        Field field = new Field(name, fieldValue, luceneOptions.getStore(),
            luceneOptions.getIndex(), luceneOptions.getTermVector());
        field.setBoost(luceneOptions.getBoost());
        document.add(field);
   }
}