com.dell.doradus.common.FieldDefinition.isXLinkField java code examples

public static boolean hasXLink(AggregationGroup group) {
  List<AggregationGroupItem> items = group.items;
  for(int i = 0; i < items.size(); i++) {
    if(items.get(i).fieldDef.isXLinkField()) return true;
  }
  return false;
}

public static boolean hasXLink(AggregationGroup group) {
  List<AggregationGroupItem> items = group.items;
  for(int i = 0; i < items.size(); i++) {
    if(items.get(i).fieldDef.isXLinkField()) return true;
  }
  return false;
}

/**
 * Indicate if this XLINK field is inverse, i.e. its inverse is a direct XLink 
 * @return  True if this is a inverse XLINK field with junction field equal to _ID
 * @see #isXLinkField()
 * @see #getXLinkJunction()
 */
public boolean isXLinkInverse() {
  return isXLinkField() && CommonDefs.ID_FIELD.equals(getXLinkJunction());
}

private void verify() {
  for (FieldDefinition fieldDef : m_fieldDefMap.values()) {
    if (fieldDef.isXLinkField()) {
      verifyJunctionField(fieldDef);
    }
  }
}

/**
 * Indicate if this XLINK field is direct, i.e. goes with junction field 
 * @return  True if this is a direct XLINK field with junction field defined.
 * @see #isXLinkField()
 * @see #getXLinkJunction()
 */
public boolean isXLinkDirect() {
  return isXLinkField() && !CommonDefs.ID_FIELD.equals(getXLinkJunction());
}

private void verify() {
  for (FieldDefinition fieldDef : m_fieldDefMap.values()) {
    if (fieldDef.isXLinkField()) {
      verifyJunctionField(fieldDef);
    }
  }
}

/**
 * Indicate if this XLINK field is inverse, i.e. its inverse is a direct XLink 
 * @return  True if this is a inverse XLINK field with junction field equal to _ID
 * @see #isXLinkField()
 * @see #getXLinkJunction()
 */
public boolean isXLinkInverse() {
  return isXLinkField() && CommonDefs.ID_FIELD.equals(getXLinkJunction());
}

/**
 * Indicate if this XLINK field is direct, i.e. goes with junction field 
 * @return  True if this is a direct XLINK field with junction field defined.
 * @see #isXLinkField()
 * @see #getXLinkJunction()
 */
public boolean isXLinkDirect() {
  return isXLinkField() && !CommonDefs.ID_FIELD.equals(getXLinkJunction());
}

public void setupXLinkMetric(AggregationMetric metric) {
  if(metric.filter != null) context.setupXLinkQuery(metric.tableDef, metric.filter);
  List<AggregationGroupItem> items = metric.items;
  TableDefinition tableDef = metric.tableDef;
  if(items == null) return;
  for(int i = items.size() - 1; i >= 0; i--) {
    AggregationGroupItem item = items.get(i);
    if(item.query != null) context.setupXLinkQuery(item.tableDef, item.query);
    if(!item.fieldDef.isXLinkField()) continue;
    metric.items = new ArrayList<AggregationGroupItem>();
    for(int j = i + 1; j < items.size(); j++) {
      metric.items.add(items.get(j));
    }
    metric.tableDef = item.tableDef;
    XMetrics xmetrics = setup(item.fieldDef, metric, item.query);
    //XMetrics xmetrics = new XMetrics();
    //if(item.fieldDef.isXLinkDirect()) setupDirect(xmetrics, item.fieldDef, metric, item.query);
    //else setupInverse(xmetrics, item.fieldDef, metric, item.query);
    item.xlinkContext = xmetrics;
    // restore the group and table definition
    metric.items = items;
    metric.tableDef = tableDef;
  }
  
}

public void setupXLinkMetric(AggregationMetric metric) {
  if(metric.filter != null) context.setupXLinkQuery(metric.tableDef, metric.filter);
  List<AggregationGroupItem> items = metric.items;
  TableDefinition tableDef = metric.tableDef;
  if(items == null) return;
  for(int i = items.size() - 1; i >= 0; i--) {
    AggregationGroupItem item = items.get(i);
    if(item.query != null) context.setupXLinkQuery(item.tableDef, item.query);
    if(!item.fieldDef.isXLinkField()) continue;
    metric.items = new ArrayList<AggregationGroupItem>();
    for(int j = i + 1; j < items.size(); j++) {
      metric.items.add(items.get(j));
    }
    metric.tableDef = item.tableDef;
    XMetrics xmetrics = setup(item.fieldDef, metric, item.query);
    //XMetrics xmetrics = new XMetrics();
    //if(item.fieldDef.isXLinkDirect()) setupDirect(xmetrics, item.fieldDef, metric, item.query);
    //else setupInverse(xmetrics, item.fieldDef, metric, item.query);
    item.xlinkContext = xmetrics;
    // restore the group and table definition
    metric.items = items;
    metric.tableDef = tableDef;
  }
  
}

protected static boolean IsLink(ArrayList<String> path, TableDefinition tableDefinition) {
  TableDefinition tableDef = tableDefinition;
  for (int i = 0; i < path.size(); i++) {
    if (tableDef == null)
      return false;
    FieldDefinition fd = tableDef.getFieldDef(path.get(i));
    if (fd == null)
      return false;
    //TODO check nested GROUP fields
    if (fd.isGroupField()) {
      ArrayList<FieldDefinition> result = GetNestedFieldDefinitions(fd);
      if (result != null)
        fd = result.get(0);
    }
    if (fd.isLinkField() || fd.isXLinkField()) {
      tableDef = tableDef.getLinkExtentTableDef(fd);
    } else {
      return false;
    }
  }
  return tableDef != null;
}

protected static boolean IsLink(ArrayList<String> path, TableDefinition tableDefinition) {
  TableDefinition tableDef = tableDefinition;
  for (int i = 0; i < path.size(); i++) {
    if (tableDef == null)
      return false;
    FieldDefinition fd = tableDef.getFieldDef(path.get(i));
    if (fd == null)
      return false;
    //TODO check nested GROUP fields
    if (fd.isGroupField()) {
      ArrayList<FieldDefinition> result = GetNestedFieldDefinitions(fd);
      if (result != null)
        fd = result.get(0);
    }
    if (fd.isLinkField() || fd.isXLinkField()) {
      tableDef = tableDef.getLinkExtentTableDef(fd);
    } else {
      return false;
    }
  }
  return tableDef != null;
}

private static QueryFieldType GetQueryFieldType(FieldDefinition fd) {
  if (fd == null)
    return QueryFieldType.Unknown;
  if (fd.isGroupField())
    return QueryFieldType.Group;
  if (fd.isLinkField())
    return QueryFieldType.Link;
  if (fd.isXLinkField())
    return QueryFieldType.Link;
  if (fd.isCollection())
    return QueryFieldType.MultiValueScalar;
  if (fd.isScalarField())
    return QueryFieldType.Field;
  return QueryFieldType.Unknown;
}

private static QueryFieldType GetQueryFieldType(FieldDefinition fd) {
  if (fd == null)
    return QueryFieldType.Unknown;
  if (fd.isGroupField())
    return QueryFieldType.Group;
  if (fd.isLinkField())
    return QueryFieldType.Link;
  if (fd.isXLinkField())
    return QueryFieldType.Link;
  if (fd.isCollection())
    return QueryFieldType.MultiValueScalar;
  if (fd.isScalarField())
    return QueryFieldType.Field;
  return QueryFieldType.Unknown;
}

private void mergeField(FieldDefinition fieldDef) {
  if(fieldDef.getType() == FieldType.TEXT || fieldDef.getType() == FieldType.BINARY) {
    mergeTextField(fieldDef);
  } else if(fieldDef.isLinkField()) {
    mergeLinkField(fieldDef);
  } else if(NumSearcherMV.isNumericType(fieldDef.getType())) {
    mergeNumField(fieldDef);
  } else if(fieldDef.isGroupField() || fieldDef.isXLinkField()) {
    // do nothing
  } else throw new RuntimeException("Unsupported field type: " + fieldDef.getType());
}

private void mergeField(FieldDefinition fieldDef) {
  if(fieldDef.getType() == FieldType.TEXT || fieldDef.getType() == FieldType.BINARY) {
    mergeTextField(fieldDef);
  } else if(fieldDef.isLinkField()) {
    mergeLinkField(fieldDef);
  } else if(NumSearcherMV.isNumericType(fieldDef.getType())) {
    mergeNumField(fieldDef);
  } else if(fieldDef.isGroupField() || fieldDef.isXLinkField()) {
    // do nothing
  } else throw new RuntimeException("Unsupported field type: " + fieldDef.getType());
}

private void validateField(FieldDefinition fieldDef) {
  Utils.require(!fieldDef.isXLinkField(), "Xlink fields are not allowed in Spider applications");
  
  // Validate scalar field analyzer.
  if (fieldDef.isScalarField()) {
    String analyzerName = fieldDef.getAnalyzerName();
    if (Utils.isEmpty(analyzerName)) {
      analyzerName = FieldType.getDefaultAnalyzer(fieldDef.getType());
      fieldDef.setAnalyzer(analyzerName);
    }
    FieldAnalyzer.verifyAnalyzer(fieldDef);
  }
}   // validateField

private void validateField(FieldDefinition fieldDef) {
  if (fieldDef.isScalarField()) {
    Utils.require(Utils.isEmpty(fieldDef.getAnalyzerName()),
           "'analyzer' not allowed for OLAPMono application fields:" + fieldDef);
  } else if (fieldDef.isXLinkField()) {
    Utils.require(false, "XLinks are not allowed for OLAPMono applications: " + fieldDef);
  } else if (fieldDef.isLinkField()) {
    Utils.require(!fieldDef.isSharded(),
           "Link fields cannot be sharded: {}", fieldDef);
  }
}   // validateField

private void validateField(FieldDefinition fieldDef) {
  if (fieldDef.isScalarField()) {
    Utils.require(Utils.isEmpty(fieldDef.getAnalyzerName()),
           "'analyzer' not allowed for OLAPMono application fields:" + fieldDef);
  } else if (fieldDef.isXLinkField()) {
    Utils.require(false, "XLinks are not allowed for OLAPMono applications: " + fieldDef);
  } else if (fieldDef.isLinkField()) {
    Utils.require(!fieldDef.isSharded(),
           "Link fields cannot be sharded: {}", fieldDef);
  }
}   // validateField

private void validateField(FieldDefinition fieldDef) {
  Utils.require(!fieldDef.isXLinkField(), "Xlink fields are not allowed in Spider applications");
  
  // Validate scalar field analyzer.
  if (fieldDef.isScalarField()) {
    String analyzerName = fieldDef.getAnalyzerName();
    if (Utils.isEmpty(analyzerName)) {
      analyzerName = FieldType.getDefaultAnalyzer(fieldDef.getType());
      fieldDef.setAnalyzer(analyzerName);
    }
    FieldAnalyzer.verifyAnalyzer(fieldDef);
  }
}   // validateField

Javadoc

Indicate if this field definition defines an XLINK field.

Popular methods of FieldDefinition

getLinkExtent
Get the name of the table that holds objects referenced by this link field definition, which is call
getLinkInverse
Get the name of this link field definition's "inverse" link field. If this field definition is not a
getName
Return this field's name.
getType
Return this field's FieldType.
isCollection
Indicate if this field is an MV scalar field, also known as a scalar collection.
isGroupField
Indicate if this field definition is a group field.
isLinkField
Indicate if this field definition defines a Link field.
isScalarField
Indicate if this field's type is a scalar type (integer, text, timestamp, etc.)
<init>
Create a new field definition with the given name and no other properties.
getInverseTableDef
Get the TableDefinition of this field's extent table, which is the table that owns its inverse link.
getNestedFields
If this is a group field, return the nested FieldDefinition objects as an Iterable collection. If th
getTableDef
Return the TableDefinition for the table that owns this field.

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How to use isXLinkFieldmethodin com.dell.doradus.common.FieldDefinition

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