Package org.apache.derby.impl.sql
Class CursorInfo
- java.lang.Object
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- org.apache.derby.impl.sql.CursorInfo
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- All Implemented Interfaces:
java.io.Externalizable
,java.io.Serializable
,Formatable
,TypedFormat
public class CursorInfo extends java.lang.Object implements Formatable
A basic holder for information about cursors for execution.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description (package private) ExecCursorTableReference
targetTable
This class implements Formatable.(package private) java.util.List<java.lang.String>
updateColumns
(package private) int
updateMode
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Constructor Summary
Constructors Constructor Description CursorInfo()
Niladic constructor for FormatableCursorInfo(int updateMode, ExecCursorTableReference targetTable, java.util.List<java.lang.String> updateColumns)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getTypeFormatId()
Get the formatID which corresponds to this class.void
readExternal(java.io.ObjectInput in)
Read this object from a stream of stored objects.java.lang.String
toString()
void
writeExternal(java.io.ObjectOutput out)
Write this object out
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Field Detail
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targetTable
ExecCursorTableReference targetTable
This class implements Formatable. That means that it can write itself to and from a formatted stream. If you add more fields to this class, make sure that you also write/read them with the writeExternal()/readExternal() methods. If, inbetween releases, you add more fields to this class, then you should bump the version number emitted by the getTypeFormatId() method.
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updateColumns
java.util.List<java.lang.String> updateColumns
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updateMode
int updateMode
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Constructor Detail
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CursorInfo
public CursorInfo()
Niladic constructor for Formatable
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CursorInfo
public CursorInfo(int updateMode, ExecCursorTableReference targetTable, java.util.List<java.lang.String> updateColumns)
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Method Detail
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
Write this object out- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Parameters:
out
- write bytes here- Throws:
java.io.IOException
- thrown on error
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readExternal
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
Read this object from a stream of stored objects.- Specified by:
readExternal
in interfacejava.io.Externalizable
- Parameters:
in
- read this.- Throws:
java.io.IOException
- thrown on errorjava.lang.ClassNotFoundException
- thrown on error
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getTypeFormatId
public int getTypeFormatId()
Get the formatID which corresponds to this class.- Specified by:
getTypeFormatId
in interfaceTypedFormat
- Returns:
- the formatID of this class
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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