Revision 697 org.gvsig.tools/library/trunk/org.gvsig.tools/org.gvsig.tools.lib/src/main/java/org/gvsig/tools/dataTypes/impl/DefaultDataType.java
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import java.text.MessageFormat; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataType; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.gvsig.tools.dataTypes.DataTypesManager.Coercion; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class DefaultDataType implements DataType {
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return this.coercion.coerce(value); |
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} |
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if( defaultClass == null ) {
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return value; // ??
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return value; // �?
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} |
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if( defaultClass.isInstance(value) ) {
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return value; |
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LOG.trace("Add coercion operation for data type {}.", new Object[] { name });
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} |
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public void addCoercion(Coercion coercion) {
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LinkedCoercions coercions = null; |
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if( ! (this.coercion instanceof LinkedCoercions) ) {
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coercions = (LinkedCoercions) this.coercion; |
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} else {
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coercions = new LinkedCoercions(); |
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coercions.add(this.coercion); |
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this.coercion = coercions; |
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} |
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coercions.add(coercion); |
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LOG.trace("Add coercion operation for data type {}.", new Object[] { name });
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} |
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public String toString() {
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return MessageFormat.format( |
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"type=0x{0};subtype={1};name={2};class={3};coercion={4}",
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return false; |
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} |
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public class LinkedCoercions implements Coercion {
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public class LinkedCoercion {
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Coercion coercion; |
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LinkedCoercion theNext; |
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LinkedCoercion(Coercion coercion, LinkedCoercion next) {
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this.theNext = next; |
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this.coercion = coercion; |
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} |
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public Object coerce(Object value) throws CoercionException {
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return this.coercion.coerce(value); |
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} |
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public boolean is(Coercion coercion) {
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return coercion.getClass().getName().equals(this.coercion.getClass().getName()); |
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} |
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public boolean hasNext() {
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return this.theNext != null; |
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} |
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public LinkedCoercion next() {
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return this.theNext; |
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} |
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} |
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LinkedCoercion head = null; |
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public LinkedCoercions() {
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super(); |
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} |
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public void add(Coercion coercion) {
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if( !this.contains(coercion)) {
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head = new LinkedCoercion(coercion, head); |
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} |
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} |
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public boolean contains(Coercion coercion) {
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LinkedCoercion x = head; |
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while( x!=null ) {
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if( x.is(coercion)) {
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return true; |
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} |
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x = x.next(); |
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} |
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return false; |
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} |
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public Object coerce(Object value) throws CoercionException {
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LinkedCoercion x = head; |
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while( x!=null ) {
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try {
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return x.coerce(value); |
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} catch (CoercionException e) {
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x = x.next(); |
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if( x==null ) {
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throw e; |
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} |
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} |
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} |
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throw new CoercionException(); |
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} |
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} |
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} |
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