oracle.toplink.essentials.internal.ejb.cmp3.metadata.columns.MetadataDiscriminatorColumn Maven / Gradle / Ivy
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package oracle.toplink.essentials.internal.ejb.cmp3.metadata.columns;
import javax.persistence.DiscriminatorType;
import javax.persistence.DiscriminatorColumn;
/**
* Object to hold onto discriminator column metadata.
*
* @author Guy Pelletier
* @since TopLink EJB 3.0 Reference Implementation
*/
public class MetadataDiscriminatorColumn {
public static final int DEFAULT_LENGTH = 31;
public static final String DEFAULT_NAME = "DTYPE";
public static final String DEFAULT_COLUMN_DEFINITION = "";
public static final String DEFAULT_DISCRIMINATOR_TYPE = DiscriminatorType.STRING.name();
protected DiscriminatorColumn m_discriminatorColumn;
/**
* INTERNAL:
*/
protected MetadataDiscriminatorColumn() {}
/**
* INTERNAL:
*/
public MetadataDiscriminatorColumn(DiscriminatorColumn discriminatorColumn) {
m_discriminatorColumn = discriminatorColumn;
}
/**
* INTERNAL:
*/
public String getColumnDefinition() {
return (m_discriminatorColumn == null) ? DEFAULT_COLUMN_DEFINITION : m_discriminatorColumn.columnDefinition();
}
/**
* INTERNAL:
*/
public String getDiscriminatorType() {
return (m_discriminatorColumn == null) ? DEFAULT_DISCRIMINATOR_TYPE : m_discriminatorColumn.discriminatorType().name();
}
/**
* INTERNAL:
*/
public int getLength() {
return (m_discriminatorColumn == null) ? DEFAULT_LENGTH : m_discriminatorColumn.length();
}
/**
* INTERNAL:
*/
public String getName() {
return (m_discriminatorColumn == null) ? null : m_discriminatorColumn.name();
}
}