org.apache.derby.iapi.sql.dictionary: public class: TupleDescriptor

org.apache.derby.iapi.sql.dictionary
public class: TupleDescriptor [javadoc | source]

java.lang.Object
   org.apache.derby.iapi.sql.dictionary.TupleDescriptor

This is the superclass of all Descriptors. Users of DataDictionary should use the specific descriptor.

Constructor:
public TupleDescriptor() { }
public TupleDescriptor(DataDictionary dataDictionary) { this.dataDictionary = dataDictionary; }

Method from org.apache.derby.iapi.sql.dictionary.TupleDescriptor Summary:
getColumnDependableFinder, getDataDictionary, getDependableFinder, getDescriptorName, getDescriptorType, isPersistent, setDataDictionary

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.apache.derby.iapi.sql.dictionary.TupleDescriptor Detail:
DependableFinder getColumnDependableFinder(int formatId, byte[] columnBitMap) { return new DDColumnDependableFinder(formatId, columnBitMap); }
protected DataDictionary getDataDictionary() { return dataDictionary; }
public DependableFinder getDependableFinder(int formatId) { return new DDdependableFinder(formatId); }
public String getDescriptorName() { if (SanityManager.DEBUG) {SanityManager.NOTREACHED(); } return null; }
public String getDescriptorType() { if (SanityManager.DEBUG) {SanityManager.NOTREACHED(); } return null; } Each descriptor must identify itself with its type; i.e index, check constraint whatever.
public boolean isPersistent() { return true; } Is this provider persistent? A stored dependency will be required if both the dependent and provider are persistent.
protected void setDataDictionary(DataDictionary dd) { dataDictionary = dd; }