public class FBParameterMetaData extends AbstractFieldMetaData implements FirebirdParameterMetaData
PreparedStatement object.AbstractFieldMetaData.ExtendedFieldInfo, AbstractFieldMetaData.FieldKey| Modifier | Constructor and Description |
|---|---|
protected |
FBParameterMetaData(RowDescriptor rowDescriptor,
FBConnection connection)
Creates a new
FBParameterMetaData instance. |
| Modifier and Type | Method and Description |
|---|---|
protected java.util.Map<AbstractFieldMetaData.FieldKey,AbstractFieldMetaData.ExtendedFieldInfo> |
getExtendedFieldInfo(FBConnection connection)
This method retrieves extended information from the system tables in
a database.
|
java.lang.String |
getParameterClassName(int parameter)
Retrieves the fully-qualified name of the Java class whose instances
should be passed to the method
PreparedStatement.setObject. |
int |
getParameterCount()
Retrieves the number of parameters in the
PreparedStatement
object for which this ParameterMetaData object contains
information. |
int |
getParameterMode(int parameter)
Retrieves the designated parameter's mode.
|
int |
getParameterType(int parameter)
Retrieves the designated parameter's SQL type.
|
java.lang.String |
getParameterTypeName(int parameter)
Retrieves the designated parameter's database-specific type name.
|
int |
getPrecision(int parameter)
Retrieves the designated parameter's specified column size.
|
int |
getScale(int parameter)
Retrieves the designated parameter's number of digits to right of the decimal point.
|
int |
isNullable(int parameter)
Retrieves whether null values are allowed in the designated parameter.
|
boolean |
isSigned(int parameter)
Retrieves whether values for the designated parameter can be signed numbers.
|
estimateFixedPrecision, getExtFieldInfo, getFieldClassName, getFieldCount, getFieldDescriptor, getFieldType, getFieldTypeName, getPrecisionInternal, getRowDescriptor, getScaleInternal, isSignedInternal, isWrapperFor, unwrapprotected FBParameterMetaData(RowDescriptor rowDescriptor, FBConnection connection) throws java.sql.SQLException
FBParameterMetaData instance.rowDescriptor - a row descriptorconnection - a FBConnection valuejava.sql.SQLException - if an error occurspublic int getParameterCount()
throws java.sql.SQLException
PreparedStatement
object for which this ParameterMetaData object contains
information.getParameterCount in interface java.sql.ParameterMetaDatajava.sql.SQLException - if a database access error occurspublic int isNullable(int parameter)
throws java.sql.SQLException
isNullable in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...ParameterMetaData.parameterNoNulls,
ParameterMetaData.parameterNullable, or
ParameterMetaData.parameterNullableUnknownjava.sql.SQLException - if a database access error occurspublic boolean isSigned(int parameter)
throws java.sql.SQLException
isSigned in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...true if so; false otherwisejava.sql.SQLException - if a database access error occurspublic int getPrecision(int parameter)
throws java.sql.SQLException
The returned value represents the maximum column size for the given parameter. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. 0 is returned for data types where the column size is not applicable.
NOTE For NUMERIC and DECIMAL the reported precision is the maximum precision
allowed by the underlying storage data type, it is not the declared precision.
getPrecision in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...java.sql.SQLException - if a database access error occurspublic int getScale(int parameter)
throws java.sql.SQLException
getScale in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...java.sql.SQLException - if a database access error occurspublic int getParameterType(int parameter)
throws java.sql.SQLException
getParameterType in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...java.sql.Typesjava.sql.SQLException - if a database access error occursTypespublic java.lang.String getParameterTypeName(int parameter)
throws java.sql.SQLException
getParameterTypeName in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...java.sql.SQLException - if a database access error occurspublic java.lang.String getParameterClassName(int parameter)
throws java.sql.SQLException
PreparedStatement.setObject.getParameterClassName in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...PreparedStatement.setObject to set the value
in the specified parameter. This is the class name used
for custom mapping.java.sql.SQLException - if a database access error occurspublic int getParameterMode(int parameter)
throws java.sql.SQLException
getParameterMode in interface java.sql.ParameterMetaDataparameter - the first parameter is 1, the second is 2, ...ParameterMetaData.parameterModeIn,
ParameterMetaData.parameterModeOut, or
ParameterMetaData.parameterModeInOut
ParameterMetaData.parameterModeUnknown.java.sql.SQLException - if a database access error occursprotected java.util.Map<AbstractFieldMetaData.FieldKey,AbstractFieldMetaData.ExtendedFieldInfo> getExtendedFieldInfo(FBConnection connection) throws java.sql.SQLException
FBParameterMetaData does not support extended field info, so it always returns an empty Map.
getExtendedFieldInfo in class AbstractFieldMetaDataAbstractFieldMetaData.FieldKey instances and AbstractFieldMetaData.ExtendedFieldInfo instances,
or an empty Map if the metadata implementation does not support extended info.java.sql.SQLException - if a database error occurs while obtaining extended field information.Copyright © 2001-2021 Jaybird (Firebird JDBC/JCA) team. All rights reserved.