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*
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* and Distribution License("CDDL") (collectively, the "License"). You
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*
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* file and include the License file at LICENSE.txt.
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* GPL Classpath Exception:
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
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package javax.json;
import java.io.
Serializable;
import java.util.
AbstractList;
import java.util.
Collections;
import java.util.
List;
import java.util.
RandomAccess;
/**
* Private implementation of immutable {@link JsonArray}.
*
* @author Lukas Jungmann
*/
final class
EmptyArray extends
AbstractList<
JsonValue> implements
JsonArray,
Serializable,
RandomAccess {
private static final long
serialVersionUID = 7295439472061642859L;
@
Override
public
JsonValue get(int
index) {
throw new
IndexOutOfBoundsException("Index: " +
index);
}
@
Override
public int
size() {
return 0;
}
@
Override
public
JsonObject getJsonObject(int
index) {
return (
JsonObject)
get(
index);
}
@
Override
public
JsonArray getJsonArray(int
index) {
return (
JsonArray)
get(
index);
}
@
Override
public
JsonNumber getJsonNumber(int
index) {
return (
JsonNumber)
get(
index);
}
@
Override
public
JsonString getJsonString(int
index) {
return (
JsonString)
get(
index);
}
@
Override
public <T extends
JsonValue>
List<T>
getValuesAs(
Class<T>
clazz) {
return
Collections.
emptyList();
}
@
Override
public
String getString(int
index) {
return
getJsonString(
index).
getString();
}
@
Override
public
String getString(int
index,
String defaultValue) {
return
defaultValue;
}
@
Override
public int
getInt(int
index) {
return
getJsonNumber(
index).
intValue();
}
@
Override
public int
getInt(int
index, int
defaultValue) {
return
defaultValue;
}
@
Override
public boolean
getBoolean(int
index) {
return
get(
index) ==
JsonValue.
TRUE;
}
@
Override
public boolean
getBoolean(int
index, boolean
defaultValue) {
return
defaultValue;
}
@
Override
public boolean
isNull(int
index) {
return
get(
index) ==
JsonValue.
NULL;
}
@
Override
public
ValueType getValueType() {
return
ValueType.
ARRAY;
}
// Preserves singleton property
private
Object readResolve() {
return
JsonValue.
EMPTY_JSON_ARRAY;
}
}