EntityClass.java 文件源码

private void buildDiscriminator() {
    if (this.inheritanceType == InheritanceType.SINGLE_TABLE || this.inheritanceType == InheritanceType.JOINED) {
        final DiscriminatorColumn column = this.hierarchyRoot.entityClass.getAnnotation(DiscriminatorColumn.class);
        if (column != null || this.inheritanceType != InheritanceType.JOINED
                || this.context.getProvider().isJoinedDiscriminatorNeeded()) {
            this.discriminatorColumn = this.table.resolveColumn(column == null ? "DTYPE" : column.name());
            this.discriminator = buildDiscriminator(this, column);
        }
    }
}