Package ghidra.program.database.util

Class QueryRecordIterator

java.lang.Object

ghidra.program.database.util.QueryRecordIterator

All Implemented Interfaces:

RecordIterator

public class QueryRecordIterator
extends Object
implements RecordIterator

Iterator that only returns records from another iterator that match the given query.

Constructor Summary

Constructors

Constructor	Description
QueryRecordIterator(RecordIterator iter, Query query)	Constructs a new QueryRecordIterator that filters the given record iterator with the given Query.
QueryRecordIterator(RecordIterator iter, Query query, boolean forward)	Constructor

Method Summary

Modifier and Type	Method	Description
boolean	delete()	Delete the last Record read via the next or previous methods.
boolean	hasNext()	Return true if a Record is available in the forward direction.
boolean	hasPrevious()	Return true if a Record is available in the reverse direction
DBRecord	next()	Return the next Record or null if one is not available.
DBRecord	previous()	Return the previous Record or null if one is not available.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

QueryRecordIterator

public QueryRecordIterator(RecordIterator iter,
 Query query)

Constructs a new QueryRecordIterator that filters the given record iterator with the given Query.

Parameters:

iter - the record iterator to filter.

query - the query used to filter.

QueryRecordIterator

public QueryRecordIterator(RecordIterator iter,
 Query query,
 boolean forward)

Constructor

Parameters:

iter - record iterator

query - query needed to match the record

forward - true means iterate in the forward direction

Method Details

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: RecordIterator

Return true if a Record is available in the forward direction.

Specified by:

hasNext in interface RecordIterator

Throws:

IOException - thrown if an IO error occurs

See Also:

• RecordIterator.hasNext()

next

public DBRecord next()
              throws IOException

Description copied from interface: RecordIterator

Return the next Record or null if one is not available.

Specified by:

next in interface RecordIterator

Throws:

IOException - thrown if an IO error occurs

See Also:

• RecordIterator.next()

hasPrevious

public boolean hasPrevious()
                    throws IOException

Description copied from interface: RecordIterator

Return true if a Record is available in the reverse direction

Specified by:

hasPrevious in interface RecordIterator

Throws:

IOException - thrown if an IO error occurs

See Also:

• RecordIterator.hasPrevious()

previous

public DBRecord previous()
                  throws IOException

Description copied from interface: RecordIterator

Return the previous Record or null if one is not available.

Specified by:

previous in interface RecordIterator

Throws:

IOException - thrown if an IO error occurs

See Also:

• RecordIterator.previous()

delete

public boolean delete()
               throws IOException

Description copied from interface: RecordIterator

Delete the last Record read via the next or previous methods.

Specified by:

delete in interface RecordIterator

Returns:

true if record was successfully deleted.

Throws:

IOException - thrown if an IO error occurs.

See Also:

• RecordIterator.delete()