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## org.apache.cayenne.access.types
Class CharType

    java.lang.Object
      org.apache.cayenne.access.types.CharType

All Implemented Interfaces:
  ExtendedType

Direct Known Subclasses:
  OracleCharType

    public class CharType

extends Object
implements ExtendedType

Handles `java.lang.String`, mapping it as either of JDBC types - CLOB or (VAR)CHAR. Can be configured to trim trailing spaces.

Field Summary
`protected boolean` | `trimmingChars`
`protected boolean` | `usingClobs`

Constructor Summary
`CharType(boolean trimingChars, boolean usingClobs)`

Method Summary
`String` | `getClassName()` Returns "java.lang.String".
`boolean` | `isTrimmingChars()` Returns `true` if 'materializeObject' method should trim trailing spaces from the CHAR columns.
`boolean` | `isUsingClobs()`
`Object` | `materializeObject(CallableStatement cs, int index, int type)` Return trimmed string.
`Object` | `materializeObject(ResultSet rs, int index, int type)` Return trimmed string.
`protected String` | `readCharStream(ResultSet rs, int index)`
`protected String` | `readClob(Clob clob)`
`protected String` | `readValueStream(Reader in, int streamSize, int bufSize)`
`void` | `setJdbcObject(PreparedStatement st, Object value, int pos, int type, int scale)` Initializes a single parameter of a PreparedStatement with object value.
`void` | `setTrimmingChars(boolean trimingChars)`
`void` | `setUsingClobs(boolean usingClobs)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### trimmingChars

    protected boolean trimmingChars

### usingClobs

    protected boolean usingClobs

Constructor Detail

### CharType

    public CharType(boolean trimingChars,
                    boolean usingClobs)

Method Detail

### getClassName

    public String getClassName()

  Returns "java.lang.String".

  Specified by:
    `getClassName` in interface `ExtendedType`

### materializeObject

    public Object materializeObject(ResultSet rs,
                                    int index,
                                    int type)
                             throws Exception

  Return trimmed string.

  Specified by:
    `materializeObject` in interface `ExtendedType`
  Throws:
    `Exception` - if read error occurred, or an object can't be converted to a target Java class.

### materializeObject

    public Object materializeObject(CallableStatement cs,
                                    int index,
                                    int type)
                             throws Exception

  Return trimmed string.

  Specified by:
    `materializeObject` in interface `ExtendedType`
  Throws:
    `Exception` - if read error ocurred, or an object can't be converted to a target Java class.

### setJdbcObject

    public void setJdbcObject(PreparedStatement st,
                              Object value,
                              int pos,
                              int type,
                              int scale)
                       throws Exception

  Description copied from interface: `ExtendedType`
  Initializes a single parameter of a PreparedStatement with object value.

  Specified by:
    `setJdbcObject` in interface `ExtendedType`
  Throws:
    `Exception`

### readClob

    protected String readClob(Clob clob)
                       throws IOException,
                              SQLException

  Throws:
    `IOException`
    `SQLException`

### readCharStream

    protected String readCharStream(ResultSet rs,
                                    int index)
                             throws IOException,
                                    SQLException

  Throws:
    `IOException`
    `SQLException`

### readValueStream

    protected String readValueStream(Reader in,
                                     int streamSize,
                                     int bufSize)
                              throws IOException

  Throws:
    `IOException`

### isTrimmingChars

    public boolean isTrimmingChars()

  Returns `true` if 'materializeObject' method should trim trailing spaces from the CHAR columns. This addresses an issue with some JDBC drivers (e.g. Oracle), that return Strings for CHAR columsn padded with spaces.

### setTrimmingChars

    public void setTrimmingChars(boolean trimingChars)

### isUsingClobs

    public boolean isUsingClobs()

### setUsingClobs

    public void setUsingClobs(boolean usingClobs)

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