Class ResultImpl
- java.lang.Object
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- org.apache.taglibs.standard.tag.common.sql.ResultImpl
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- All Implemented Interfaces:
Result
public class ResultImpl extends java.lang.Object implements Result
This class creates a cached version of a ResultSet. It's represented as a Result implementation, capable of returing an array of Row objects containing a Column instance for each column in the row.
Note -- this is a private copy for the RI to avoid making the corresponding class in javax.servlet.* public.
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Constructor Summary
Constructors Constructor Description ResultImpl(java.sql.ResultSet rs)
Build aResult
object from aResultSet
object.ResultImpl(java.sql.ResultSet rs, int maxRows)
Build aResult
object from aResultSet
object.ResultImpl(java.sql.ResultSet rs, int startRow, int maxRows)
This constructor reads the ResultSet and saves a cached copy.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String[]
getColumnNames()
Returns an array of String objects.int
getRowCount()
Returns the number of rows in the cached ResultSetjava.util.SortedMap[]
getRows()
Returns an array of SortedMap objects.java.lang.Object[][]
getRowsByIndex()
Returns an array of Object[] objects.boolean
isLimitedByMaxRows()
Returns true of the query was limited by a maximum row setting
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Constructor Detail
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ResultImpl
public ResultImpl(java.sql.ResultSet rs) throws java.sql.SQLException
Build aResult
object from aResultSet
object.- Parameters:
rs
- an open ResultSet, positioned before the first row- Throws:
java.sql.SQLException
- if a database error occurs
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ResultImpl
public ResultImpl(java.sql.ResultSet rs, int maxRows) throws java.sql.SQLException
Build aResult
object from aResultSet
object.- Parameters:
rs
- an open ResultSet, positioned before the first rowmaxRows
- query maximum rows limit- Throws:
java.sql.SQLException
- if a database error occurs
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ResultImpl
public ResultImpl(java.sql.ResultSet rs, int startRow, int maxRows) throws java.sql.SQLException
This constructor reads the ResultSet and saves a cached copy.- Parameters:
rs
- an open ResultSet, positioned before the first rowstartRow
- beginning row to be cachedmaxRows
- query maximum rows limit- Throws:
java.sql.SQLException
- if a database error occurs
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Method Detail
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getRows
public java.util.SortedMap[] getRows()
Returns an array of SortedMap objects. The SortedMap object key is the ColumnName and the value is the ColumnValue. SortedMap was created using the CASE_INSENSITIVE_ORDER Comparator so the key is the case insensitive representation of the ColumnName.
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getRowsByIndex
public java.lang.Object[][] getRowsByIndex()
Returns an array of Object[] objects. The first index designates the Row, the second the Column. The array stores the value at the specified row and column.- Specified by:
getRowsByIndex
in interfaceResult
- Returns:
- an array of Object[], or null if there are no rows
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getColumnNames
public java.lang.String[] getColumnNames()
Returns an array of String objects. The array represents the names of the columns arranged in the same order as in the getRowsByIndex() method.- Specified by:
getColumnNames
in interfaceResult
- Returns:
- an array of String[]
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getRowCount
public int getRowCount()
Returns the number of rows in the cached ResultSet- Specified by:
getRowCount
in interfaceResult
- Returns:
- the number of cached rows, or -1 if the Result could not be initialized due to SQLExceptions
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isLimitedByMaxRows
public boolean isLimitedByMaxRows()
Returns true of the query was limited by a maximum row setting- Specified by:
isLimitedByMaxRows
in interfaceResult
- Returns:
- true if the query was limited by a MaxRows attribute
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