| java.lang.Object
 org.apache.derby.iapi.types.DataType
org.apache.derby.impl.store.access.conglomerate.GenericConglomerate
All known Subclasses: org.apache.derby.impl.store.access.btree.BTree, org.apache.derby.impl.store.access.heap.Heap,
| GenericConglomerate | | abstract public class GenericConglomerate extends DataType implements Conglomerate(Code) | | A class that implements the methods shared across all implementations of
the Conglomerate interface.
|
| compare | | public int compare(DataValueDescriptor other) throws StandardException(Code) | | Compare this Orderable with a given Orderable for the purpose of
index positioning. This method treats nulls as ordered values -
that is, it treats SQL null as equal to null and less than all
other values.
Parameters:
other - The Orderable to compare this one to. <0 - this Orderable is less than other.0 - this Orderable equals other.>0 - this Orderable is greater than other.The code should not explicitly look for -1, or 1.
exception:
StandardException - Thrown on error
See Also: DataValueDescriptor.compare |
| getClone | | public DataValueDescriptor getClone()(Code) | | Shallow copy.
Clone the DataValueDescriptor and copy its contents.
We clone the data value wrapper (e.g. SQLDecimal)
and reuse its contents (the underlying BigDecimal).
The resultant DataValueDescriptor will point to the same
value as the original DataValueDescriptor (unless the value
is a primitive type, e.g. SQLInteger/integer).
A clone of the DataValueDescriptor reusing its contents.
See Also: org.apache.derby.iapi.types.DataValueDescriptor.getClone |
| getLength | | public int getLength() throws StandardException(Code) | | Gets the length of the data value. The meaning of this is
implementation-dependent. For string types, it is the number of
characters in the string. For numeric types, it is the number of
bytes used to store the number. This is the actual length
of this value, not the length of the type it was defined as.
For example, a VARCHAR value may be shorter than the declared
VARCHAR (maximum) length.
The length of the data value
exception:
StandardException - On error
See Also: org.apache.derby.iapi.types.DataValueDescriptor.getLength |
| getObject | | public Object getObject() throws StandardException(Code) | | Gets the value in the data value descriptor as a Java Object.
The type of the Object will be the Java object type corresponding
to the data value's SQL type. JDBC defines a mapping between Java
object types and SQL types - we will allow that to be extended
through user type definitions. Throws an exception if the data
value is not an object (yeah, right).
The data value as an Object.
exception:
StandardException - Thrown on error
See Also: org.apache.derby.iapi.types.DataValueDescriptor.getObject |
| Methods inherited from org.apache.derby.iapi.types.DataType | public void checkHostVariable(int declaredLength) throws StandardException(Code)(Java Doc)
public Object cloneObject()(Code)(Java Doc)
public DataValueDescriptor coalesce(DataValueDescriptor[] argumentsList, DataValueDescriptor returnValue) throws StandardException(Code)(Java Doc)
public boolean compare(int op, DataValueDescriptor other, boolean orderedNulls, boolean unknownRV) throws StandardException(Code)(Java Doc)
final protected StandardException dataTypeConversion(String targetType)(Code)(Java Doc)
public BooleanDataValue equals(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
public boolean equals(Object other)(Code)(Java Doc)
protected static int flip(int operator)(Code)(Java Doc)
public boolean getBoolean() throws StandardException(Code)(Java Doc)
public byte getByte() throws StandardException(Code)(Java Doc)
public byte[] getBytes() throws StandardException(Code)(Java Doc)
public Date getDate(Calendar cal) throws StandardException(Code)(Java Doc)
public double getDouble() throws StandardException(Code)(Java Doc)
public float getFloat() throws StandardException(Code)(Java Doc)
public int getInt() throws StandardException(Code)(Java Doc)
public long getLong() throws StandardException(Code)(Java Doc)
protected String getNationalString(LocaleFinder localeFinder) throws StandardException(Code)(Java Doc)
public Object getObject() throws StandardException(Code)(Java Doc)
public short getShort() throws StandardException(Code)(Java Doc)
public InputStream getStream() throws StandardException(Code)(Java Doc)
public Time getTime(Calendar cal) throws StandardException(Code)(Java Doc)
public Timestamp getTimestamp(Calendar cal) throws StandardException(Code)(Java Doc)
public String getTraceString() throws StandardException(Code)(Java Doc)
public BooleanDataValue greaterOrEquals(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
public BooleanDataValue greaterThan(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
public BooleanDataValue in(DataValueDescriptor left, DataValueDescriptor[] inList, boolean orderedList) throws StandardException(Code)(Java Doc)
final protected StandardException invalidFormat()(Code)(Java Doc)
final public BooleanDataValue isNotNull()(Code)(Java Doc)
final public BooleanDataValue isNullOp()(Code)(Java Doc)
public BooleanDataValue lessOrEquals(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
public BooleanDataValue lessThan(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
public void normalize(DataTypeDescriptor desiredType, DataValueDescriptor source) throws StandardException(Code)(Java Doc)
public BooleanDataValue notEquals(DataValueDescriptor left, DataValueDescriptor right) throws StandardException(Code)(Java Doc)
final protected StandardException outOfRange()(Code)(Java Doc)
public void setBigDecimal(Number bigDecimal) throws StandardException(Code)(Java Doc)
protected void setFrom(DataValueDescriptor dvd) throws StandardException(Code)(Java Doc)
public void setInto(PreparedStatement ps, int position) throws SQLException, StandardException(Code)(Java Doc)
public void setInto(ResultSet rs, int position) throws SQLException, StandardException(Code)(Java Doc)
public void setObjectForCast(Object theValue, boolean instanceOfResultType, String resultTypeClassName) throws StandardException(Code)(Java Doc)
public void setToNull()(Code)(Java Doc)
public void setValue(Time theValue) throws StandardException(Code)(Java Doc)
public void setValue(Time theValue, Calendar cal) throws StandardException(Code)(Java Doc)
public void setValue(Timestamp theValue) throws StandardException(Code)(Java Doc)
public void setValue(Timestamp theValue, Calendar cal) throws StandardException(Code)(Java Doc)
public void setValue(Date theValue) throws StandardException(Code)(Java Doc)
public void setValue(Date theValue, Calendar cal) throws StandardException(Code)(Java Doc)
public void setValue(String theValue) throws StandardException(Code)(Java Doc)
public void setValue(int theValue) throws StandardException(Code)(Java Doc)
public void setValue(double theValue) throws StandardException(Code)(Java Doc)
public void setValue(float theValue) throws StandardException(Code)(Java Doc)
public void setValue(short theValue) throws StandardException(Code)(Java Doc)
public void setValue(long theValue) throws StandardException(Code)(Java Doc)
public void setValue(byte theValue) throws StandardException(Code)(Java Doc)
public void setValue(boolean theValue) throws StandardException(Code)(Java Doc)
public void setValue(byte[] theValue) throws StandardException(Code)(Java Doc)
final public void setValue(DataValueDescriptor dvd) throws StandardException(Code)(Java Doc)
public void setValue(InputStream theStream, int valueLength) throws StandardException(Code)(Java Doc)
public void throwLangSetMismatch(Object value) throws StandardException(Code)(Java Doc)
public int typePrecedence()(Code)(Java Doc)
public int typeToBigDecimal() throws StandardException(Code)(Java Doc)
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