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java.lang.Objectorg.h2.command.Prepared
org.h2.command.dml.Explain
public class Explain
This class represents the statement EXPLAIN
Field Summary |
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Fields inherited from class org.h2.command.Prepared |
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create, parameters, prepareAlways, session, sqlStatement |
Constructor Summary | |
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Explain(Session session)
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Method Summary | |
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int |
getType()
Get the command type as defined in CommandInterface |
boolean |
isQuery()
Check if this object is a query. |
boolean |
isReadOnly()
Check if this command is read only. |
boolean |
isTransactional()
Check if this command is transactional. |
void |
prepare()
Prepare this statement. |
ResultInterface |
query(int maxrows)
Execute the query. |
ResultInterface |
queryMeta()
Get an empty result set containing the meta data. |
void |
setCommand(Prepared command)
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void |
setExecuteCommand(boolean executeCommand)
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Methods inherited from class org.h2.command.Prepared |
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checkCanceled, checkParameters, getCurrentObjectId, getCurrentRowNumber, getObjectId, getParameters, getPlanSQL, getSQL, getSQL, getSQL, isCacheable, needRecompile, setCommand, setCurrentRowNumber, setObjectId, setParameterList, setPrepareAlways, setRow, setSession, setSQL, toString, update |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Explain(Session session)
Method Detail |
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public void setCommand(Prepared command)
public void prepare()
Prepared
prepare
in class Prepared
public void setExecuteCommand(boolean executeCommand)
public ResultInterface queryMeta()
Prepared
queryMeta
in class Prepared
public ResultInterface query(int maxrows)
Prepared
query
in class Prepared
maxrows
- the maximum number of rows to return
public boolean isQuery()
Prepared
isQuery
in class Prepared
public boolean isTransactional()
Prepared
isTransactional
in class Prepared
public boolean isReadOnly()
Prepared
isReadOnly
in class Prepared
public int getType()
Prepared
getType
in class Prepared
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