/*
- * Copyright 2008 the original author or authors.
+ * Copyright 2005-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
- */
+ */
package org.wamblee.system.adapters;
-import java.util.ArrayList;
-import java.util.List;
-
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.RequiredInterface;
import org.wamblee.system.core.Scope;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
/**
- * Represents parameter values for a method or constructor and allows for the configuration
- * of how these values are retrieved.
+ * Represents parameter values for a method or constructor and allows for the
+ * configuration of how these values are retrieved.
*
* @author Erik Brakkee
*/
public class ParameterValues {
- private Class[] _types;
- private ValueProvider[] _values;
-
- /**
- * Constructs the configuration. By default no constructor is selected and
- * one of {@link #select(Class...)} or
- * {@link #greedy()} must be called.
- * @param aClass Class to construct.
- */
- public ParameterValues(Class[] aTypes) {
- _types = aTypes;
- resetValues();
- }
-
- public Class[] getTypes() {
- return _types;
- }
-
- /**
- * Sets argument i to be optional, meaning that null is allowed to be passed in.
- * @param aArg Argument to set.
- */
- public ParameterValues setOptional(int aArg) {
- _values[aArg] = new RequiredInterfaceProvider(new DefaultRequiredInterface(
- "arg" + aArg, _types[aArg], true));
- return this;
- }
-
- /**
- * Sets the argument i to a fixed value.
- * @param aArg Argument to set.
- * @param aValue Value.
- */
- public ParameterValues setValue(int aArg, Object aValue) {
- _values[aArg] = new FixedValueProvider(aValue);
- return this;
- }
-
- /**
- * Resets the values.
- */
- private void resetValues() {
- _values = new ValueProvider[_types.length];
- for (int i = 0; i < _values.length; i++) {
- _values[i] = new RequiredInterfaceProvider(new DefaultRequiredInterface(
- "arg" + i, _types[i]));
- }
- }
-
- public List<RequiredInterface> getRequiredInterfaces() {
- List<RequiredInterface> result = new ArrayList<RequiredInterface>();
- for (ValueProvider provider: _values) {
- if ( provider instanceof RequiredInterfaceProvider) {
- result.add( ((RequiredInterfaceProvider)provider).getRequiredInterface());
- }
- }
- return result;
- }
-
- public Object[] values(Scope aScope) {
- Object[] values = new Object[_values.length];
- for (int i = 0; i < _values.length; i++) {
- values[i] = _values[i].getValue(aScope);
- }
- return values;
- }
-
+ private String[] names;
+
+ private Class[] types;
+
+ private ValueProvider[] values;
+
+ /**
+ * Constructs the configuration. By default no constructor is selected and
+ * one of {@link #select(Class...)} or {@link #greedy()} must be called.
+ *
+ * @param aClass
+ * Class to construct.
+ */
+ public ParameterValues(Class[] aTypes) {
+ names = new String[aTypes.length];
+
+ for (int i = 0; i < aTypes.length; i++) {
+ names[i] = "arg" + i;
+ }
+
+ types = aTypes;
+ resetValues();
+ }
+
+ /**
+ * Constructs the configuration. By default no constructor is selected and
+ * one of {@link #select(Class...)} or {@link #greedy()} must be called.
+ *
+ * @param aNames
+ * Names of the arguments.
+ * @param aClass
+ * Class to construct.
+ */
+ public ParameterValues(String[] aNames, Class[] aTypes) {
+ assert aNames.length == aTypes.length;
+ names = aNames;
+ types = Arrays.copyOf(aTypes, aTypes.length);
+ resetValues();
+ }
+
+ /**
+ * The types of the parameter values.
+ *
+ * @return Types.
+ */
+ public Class[] getTypes() {
+ return Arrays.copyOf(types, types.length);
+ }
+
+ /**
+ * Sets argument i to be optional, meaning that null is allowed to be passed
+ * in.
+ *
+ * @param aArg
+ * Argument to set.
+ *
+ */
+ public ParameterValues setOptional(int aArg) {
+ values[aArg] = new RequiredInterfaceProvider(
+ new DefaultRequiredInterface("arg" + aArg, types[aArg], true));
+
+ return this;
+ }
+
+ /**
+ * Sets the argument i to a fixed value.
+ *
+ * @param aArg
+ * Argument to set.
+ * @param aValue
+ * Value.
+ *
+ */
+ public ParameterValues setValue(int aArg, Object aValue) {
+ values[aArg] = new FixedValueProvider(aValue);
+
+ return this;
+ }
+
+ /**
+ * Resets the values.
+ */
+ private void resetValues() {
+ values = new ValueProvider[types.length];
+
+ for (int i = 0; i < values.length; i++) {
+ values[i] = new RequiredInterfaceProvider(
+ new DefaultRequiredInterface(names[i], types[i]));
+ }
+ }
+
+ /**
+ * Gets the required interfaces to provide values that are not provided in
+ * another way.
+ *
+ * @return Required interfaces.
+ */
+ public List<RequiredInterface> getRequiredInterfaces() {
+ List<RequiredInterface> result = new ArrayList<RequiredInterface>();
+
+ for (ValueProvider provider : values) {
+ if (provider instanceof RequiredInterfaceProvider) {
+ result.add(((RequiredInterfaceProvider) provider)
+ .getRequiredInterface());
+ }
+ }
+
+ return result;
+ }
+
+ /**
+ * Returns the values to use in the given scope.
+ *
+ * @param aScope
+ * Scope within which to retrieve the values.
+ *
+ * @return Values.
+ */
+ public Object[] values(Scope aScope) {
+ Object[] valueArray = new Object[values.length];
+
+ for (int i = 0; i < values.length; i++) {
+ valueArray[i] = values[i].getValue(aScope);
+ }
+
+ return valueArray;
+ }
}
git://wamblee.org / utils / blobdiff