Examples of DatabaseMapping

oracle.toplink.essentials.mappings.DatabaseMapping
Purpose: Defines how an attribute of an object maps to and from the database
Responsibilities:
- Define type of relationship (1:1/1:M/M:M/etc.)
- Define instance variable name and fields names required
- Define any additional properties (ownership, indirection, read only, etc.)
- Control building the value for the instance variable from the database row
- Control building the database fields from the object
- Control any pre/post updating/inserting/deleting required to maintain the relationship
- Merges object changes for unit of work.
- Clones objects for unit of work.
- cache computed information to optimize performance
@author Sati @since TOPLink/Java 1.0
org.eclipse.persistence.mappings.DatabaseMapping
Purpose: Defines how an attribute of an object maps to and from the database
Responsibilities:
- Define type of relationship (1:1/1:M/M:M/etc.)
- Define instance variable name and fields names required
- Define any additional properties (ownership, indirection, read only, etc.)
- Control building the value for the instance variable from the database row
- Control building the database fields from the object
- Control any pre/post updating/inserting/deleting required to maintain the relationship
- Merges object changes for unit of work.
- Clones objects for unit of work.
- cache computed information to optimize performance
@author Sati @since TOPLink/Java 1.0

Examples of oracle.toplink.essentials.mappings.DatabaseMapping


    /** Returns the type of the attribute with the specified name in the
     * specified owner class. 
     */ 
    public Object resolveAttribute(Object ownerClass, String attribute) {
        DatabaseMapping mapping = 
            resolveAttributeMapping(ownerClass, attribute);
        return getType(mapping);
    }

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

                        if (textNodeUnmarshalNodeValue.isMappingNodeValue()) {
                            textNodeUnmarshalNodeValue.endElement(xPathFragment, this);
                        }
                    } else {
                        if(textNodeUnmarshalNodeValue.isMappingNodeValue()) {
                            DatabaseMapping mapping = ((MappingNodeValue)textNodeUnmarshalNodeValue).getMapping();
                            if(mapping.isAbstractDirectMapping()) {
                                Object nullValue = ((AbstractDirectMapping)mapping).getNullValue();
                                if(!(XMLConstants.EMPTY_STRING.equals(nullValue))) {
                                    setAttributeValue(null, mapping);
                                    this.removeNullCapableValue((NullCapableValue)textNodeUnmarshalNodeValue);
                                }

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Examples of org.eclipse.persistence.mappings.DatabaseMapping


  ClassDescriptor resolveDescriptor(Expression expression) {


    PathResolver resolver = pathResolver();


    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  DatabaseMapping resolveMapping(Expression expression) {


    PathResolver resolver = pathResolver();


    QueryKey oldQueryKey          = resolver.queryKey;
    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  Object resolveMappingObject(Expression expression) {


    PathResolver resolver = pathResolver();


    QueryKey oldQueryKey          = resolver.queryKey;
    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  private Class<?> resolveMappingType(AbstractPathExpression expression) {


    PathResolver resolver = pathResolver();


    QueryKey oldQueryKey          = resolver.queryKey;
    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  QueryKey resolveQueryKey(org.eclipse.persistence.jpa.jpql.parser.Expression expression) {


    PathResolver resolver = pathResolver();


    QueryKey oldQueryKey          = resolver.queryKey;
    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  @Override
  public void visit(IdentificationVariable expression) {


    PathResolver resolver = pathResolver();


    DatabaseMapping oldMapping    = resolver.mapping;
    ClassDescriptor oldDescriptor = resolver.descriptor;


    try {
      resolver.mapping    = null;
      resolver.descriptor = null;

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

   */
  @Override
  public void visit(KeyExpression expression) {
    IdentificationVariable identificationVariable = (IdentificationVariable) expression.getExpression();
    Declaration declaration = queryContext.findDeclaration(identificationVariable.getVariableName());
    DatabaseMapping mapping = declaration.getMapping();
    MappedKeyMapContainerPolicy mapContainerPolicy = (MappedKeyMapContainerPolicy) mapping.getContainerPolicy();
    type = (Class<?>) mapContainerPolicy.getKeyType();
  }

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Examples of org.eclipse.persistence.mappings.DatabaseMapping

  @Override
  public void visit(ValueExpression expression) {


    IdentificationVariable identificationVariable = (IdentificationVariable) expression.getExpression();
    Declaration declaration = queryContext.findDeclaration(identificationVariable.getVariableName());
    DatabaseMapping mapping = declaration.getMapping();


    if (mapping.isDirectMapMapping()) {
      DirectMapMapping mapMapping = (DirectMapMapping) mapping;
      type = mapMapping.getValueClass();
    }
    else {
      type = calculateMappingType(declaration.getMapping());

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