Example usage for com.google.common.reflect TypeParameter TypeParameter

Introduction

In this page you can find the example usage for com.google.common.reflect TypeParameter TypeParameter.

Prototype

protected TypeParameter()

Source Link

Usage

From source file:org.apache.beam.sdk.values.TypeDescriptors.java

/**
 * The {@link TypeDescriptor} for {@link KV}.
 * This is the equivalent of:/*from   w  w w .j  ava 2  s.co m*/
 * <pre>
 * new TypeDescriptor&lt;KV&lt;K,V&gt;&gt;() {};
 * </pre>
 *
 * <p>Example of use:
 * <pre>
 * {@code
 * PCollection<String> words = ...;
 * PCollection<KV<String, String>> words = words.apply(
 *            FlatMapElements.via(...)
 *            .withOutputType(
 *              TypeDescriptors.kv(TypeDescriptors.strings(), TypeDescriptors.strings())));
 * }
 * </pre>
 * @param key The {@link TypeDescriptor} for the key
 * @param value The {@link TypeDescriptor} for the value
 * @return A {@link TypeDescriptor} for {@link KV}
 */
public static <K, V> TypeDescriptor<KV<K, V>> kvs(TypeDescriptor<K> key, TypeDescriptor<V> value) {
    TypeDescriptor<KV<K, V>> typeDescriptor = new TypeDescriptor<KV<K, V>>() {
    }.<K>where(new TypeParameter<K>() {
    }, key).<V>where(new TypeParameter<V>() {
    }, value);

    return typeDescriptor;
}

From source file:ninja.leaping.configurate.SimpleConfigurationNode.java

@Override
public <T> List<T> getList(TypeToken<T> type, Supplier<List<T>> defSupplier) throws ObjectMappingException {
    List<T> ret = getValue(new TypeToken<List<T>>() {
    }.where(new TypeParameter<T>() {
    }, type), defSupplier);/*from  w w  w .j  a va  2 s  .  co m*/
    return ret.isEmpty() ? calculateDef(defSupplier.get()) : ret;
}

From source file:io.airlift.drift.codec.metadata.ThriftType.java

public static <T> ThriftType optional(ThriftTypeReference valueTypeReference) {
    requireNonNull(valueTypeReference, "valueTypeReference is null");

    @SuppressWarnings("serial")
    Type javaType = new TypeToken<Optional<T>>() {
    }.where(new TypeParameter<T>() {
    }, (TypeToken<T>) TypeToken.of(valueTypeReference.getJavaType())).getType();
    return new ThriftType(valueTypeReference.getProtocolType(), javaType, null, valueTypeReference,
            Optional.empty());//w  w  w.  ja va 2 s  . c o m
}

From source file:net.navatwo.jfxproperties.MoreReflection.java

/**
 * Checks if the passed type is an observable collection of the correct type.
 *
 * @param propType/*from  w w  w  .  j  a  va  2  s . co  m*/
 * @return
 */
public static <K, V> boolean isMap(TypeToken<?> propType, TypeToken<K> keyType, TypeToken<V> valueType) {
    TypeToken<Map<K, V>> mapType = new TypeToken<Map<K, V>>() {
    }.where(new TypeParameter<K>() {
    }, keyType).where(new TypeParameter<V>() {
    }, valueType);

    boolean result = propType.isSubtypeOf(mapType);
    if (result) {
        TypeToken<?> pKeyType = resolveTypeParameter(propType, 0);
        TypeToken<?> pValueType = resolveTypeParameter(propType, 1);

        result &= keyType.isSubtypeOf(pKeyType) && valueType.isSubtypeOf(pValueType);
    }

    return result;
}

From source file:io.airlift.drift.client.guice.DriftClientBinder.java

@SuppressWarnings("unchecked")
private static <T> TypeLiteral<DriftClient<T>> driftClientTypeLiteral(Class<T> clientInterface) {
    Type javaType = new TypeToken<DriftClient<T>>() {
    }.where(new TypeParameter<T>() {
    }, TypeToken.of(clientInterface)).getType();
    return (TypeLiteral<DriftClient<T>>) TypeLiteral.get(javaType);
}

From source file:org.apache.beam.sdk.values.TypeDescriptors.java

/**
 * The {@link TypeDescriptor} for {@link Set}.
 * This is the equivalent of://from  www .  j  a va2 s. c  om
 * <pre>
 * new TypeDescriptor&lt;Set&lt;E&gt;&gt;() {};
 * </pre>
 *
 * <p>Example of use:
 * <pre>
 * {@code
 * PCollection<String> words = ...;
 * PCollection<Set<String>> words = words.apply(
 *            FlatMapElements.via(...)
 *            .withOutputType(TypeDescriptors.sets(TypeDescriptors.strings())));
 * }
 * </pre>
 * @param element The {@link TypeDescriptor} for the set
 * @return A {@link TypeDescriptor} for {@link Set}
 */
public static <T> TypeDescriptor<Set<T>> sets(TypeDescriptor<T> element) {
    TypeDescriptor<Set<T>> typeDescriptor = new TypeDescriptor<Set<T>>() {
    }.<T>where(new TypeParameter<T>() {
    }, element);

    return typeDescriptor;
}

From source file:org.elassandra.cqlinject.CqlClient.java

static <K, V> TypeToken<Map<K, V>> mapToken(TypeToken<K> keyToken, TypeToken<V> valueToken) {
    return new TypeToken<Map<K, V>>() {
    }.where(new TypeParameter<K>() {
    }, keyToken).where(new TypeParameter<V>() {
    }, valueToken);/*from   w w w  .j  a  va  2 s  .  c om*/
}

From source file:org.lanternpowered.server.data.key.LanternKeyFactory.java

public static <E> Key<ListValue<E>> makeListKey(TypeToken<E> elementToken, DataQuery query, String id,
        String name) {//from   w  w w  .  j  av a2 s  .co m
    final TypeToken<? extends List<E>> elementToken0 = new TypeToken<List<E>>() {
    }.where(new TypeParameter<E>() {
    }, elementToken);
    final TypeToken<ListValue<E>> valueToken = new TypeToken<ListValue<E>>() {
    }.where(new TypeParameter<E>() {
    }, elementToken);
    return makeListKey(elementToken0, valueToken, query, id, name);
}

From source file:org.elassandra.cqlinject.CqlClient.java

static <V> TypeToken<Set<V>> setToken(TypeToken<V> valueToken) {
    return new TypeToken<Set<V>>() {
    }.where(new TypeParameter<V>() {
    }, valueToken);/*  ww  w  .j a  v a 2 s.  c  o m*/
}

From source file:org.elassandra.cqlinject.CqlClient.java

static <V> TypeToken<List<V>> listToken(TypeToken<V> valueToken) {
    return new TypeToken<List<V>>() {
    }.where(new TypeParameter<V>() {
    }, valueToken);//from   w ww.j  a  v a  2 s .c o  m
}