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java.lang.Objectorg.axiondb.types.BaseDataType
org.axiondb.types.ObjectType
public class ObjectType
A DataType
representing a Serializable
object value.
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.axiondb.DataType |
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DataType.BinaryRepresentation, DataType.ExactNumeric, DataType.NonFixedPrecision |
Constructor Summary | |
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ObjectType()
|
Method Summary | |
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boolean |
accepts(java.lang.Object value)
Returns true iff value is null or a
Serializable .object |
java.lang.Object |
convert(java.lang.Object value)
Returns a String converted from the given value , or throws
IllegalArgumentException if the given value isn't
acceptable . |
int |
getColumnDisplaySize()
Value returned by ResultSetMetaData#getColumnDisplaySize for this data
type. |
int |
getJdbcType()
Returns the JDBC type code most closely matching this type. |
java.lang.String |
getPreferredValueClassName()
Returns the "normal" type returned by DataType.convert(java.lang.Object) . |
DataType |
makeNewInstance()
Creates a new instance of this DataType implementation. |
java.lang.Object |
read(java.io.DataInput in)
Instantiate an object of my type from the given DataInput . |
java.lang.Object |
successor(java.lang.Object value)
Returns the successor for the given value. |
boolean |
supportsSuccessor()
Returns true if the DataType.successor(java.lang.Object) method is supported, false
otherwise. |
java.lang.String |
toString()
Returns "string" |
void |
write(java.lang.Object value,
java.io.DataOutput out)
Writes the given value to the given DataOutput . |
Methods inherited from class org.axiondb.types.BaseDataType |
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compare, getComparator, getLiteralPrefix, getLiteralSuffix, getNullableCode, getPrecision, getPrecisionRadix, getScale, getSearchableCode, isCaseSensitive, isCurrency, isUnsigned, toBigDecimal, toBigInteger, toBlob, toBoolean, toByte, toByteArray, toClob, toDate, toDouble, toFloat, toInt, toLong, toNumber, toShort, toString, toTime, toTimestamp, toURL |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Comparator |
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equals |
Constructor Detail |
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public ObjectType()
Method Detail |
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public int getJdbcType()
DataType
type code
most closely matching this type.
getJdbcType
in interface DataType
getJdbcType
in class BaseDataType
public java.lang.String getPreferredValueClassName()
DataType
DataType.convert(java.lang.Object)
. Returns
java.lang.Object if unknown.
getPreferredValueClassName
in interface DataType
getPreferredValueClassName
in class BaseDataType
AxionResultSetMetaData.getColumnClassName(int)
public java.lang.String toString()
"string"
toString
in class java.lang.Object
"string"
public boolean accepts(java.lang.Object value)
true
iff value is null
or a
Serializable
.object
accepts
in interface DataType
accepts
in class BaseDataType
value
- non- null
valuepublic java.lang.Object convert(java.lang.Object value) throws java.lang.IllegalArgumentException
String
converted from the given value , or throws
IllegalArgumentException
if the given value isn't
acceptable
.
convert
in interface DataType
convert
in class BaseDataType
java.lang.IllegalArgumentException
public int getColumnDisplaySize()
DataType
ResultSetMetaData#getColumnDisplaySize
for this data
type.
getColumnDisplaySize
in interface DataType
getColumnDisplaySize
in class BaseDataType
ResultSetMetaData.getColumnDisplaySize(int)
public boolean supportsSuccessor()
DataType
true
if the DataType.successor(java.lang.Object)
method is supported, false
otherwise.
supportsSuccessor
in interface DataType
supportsSuccessor
in class BaseDataType
public java.lang.Object successor(java.lang.Object value) throws java.lang.IllegalArgumentException
DataType
successor
in interface DataType
successor
in class BaseDataType
java.lang.IllegalArgumentException
public java.lang.Object read(java.io.DataInput in) throws java.io.IOException
DataType
DataInput
. The next
sequence of bytes to be read from the DataInput
will have been
written by DataType.write(java.lang.Object, java.io.DataOutput)
.
read
in interface DataType
read
in class BaseDataType
java.io.IOException
write(java.lang.Object, java.io.DataOutput)
public void write(java.lang.Object value, java.io.DataOutput out) throws java.io.IOException
DataOutput
.
Null
values are written as "null", false
, the
non-null String "null"
is written as "null", true
,
all other values are written directly.
write
in interface DataType
write
in class BaseDataType
value
- the value to write, which must be acceptable
java.io.IOException
public DataType makeNewInstance()
DataType
makeNewInstance
in interface DataType
makeNewInstance
in interface DataTypeFactory
makeNewInstance
in class BaseDataType
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