From 8d1ec9f51d4b1ff5c7457d48ecede577133ed9e9 Mon Sep 17 00:00:00 2001
From: Olof Larsson <olof@sylt.nu>
Date: Tue, 17 Dec 2013 02:59:57 +0100
Subject: [PATCH] Some useful predictates

---
 src/com/massivecraft/mcore/PredictateAnd.java | 49 +++++++++++++++++++
 .../mcore/PredictateIsntDefaultEntity.java    | 24 +++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 src/com/massivecraft/mcore/PredictateAnd.java
 create mode 100644 src/com/massivecraft/mcore/PredictateIsntDefaultEntity.java

diff --git a/src/com/massivecraft/mcore/PredictateAnd.java b/src/com/massivecraft/mcore/PredictateAnd.java
new file mode 100644
index 00000000..2fa3369c
--- /dev/null
+++ b/src/com/massivecraft/mcore/PredictateAnd.java
@@ -0,0 +1,49 @@
+package com.massivecraft.mcore;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+public class PredictateAnd<T> implements Predictate<T>
+{
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	@SafeVarargs
+	public static <T> PredictateAnd<T> get(Predictate<T>... predictates) { return new PredictateAnd<T>(predictates); }
+	@SafeVarargs
+	public PredictateAnd(Predictate<T>... predictates)
+	{
+		this(Arrays.asList(predictates));
+	}
+	
+	public static <T> PredictateAnd<T> get(Collection<Predictate<T>> predictates) { return new PredictateAnd<T>(predictates); }
+	public PredictateAnd(Collection<Predictate<T>> predictates)
+	{
+		this.predictates = Collections.unmodifiableList(new ArrayList<Predictate<T>>(predictates));
+	}
+	
+	// -------------------------------------------- //
+	// FIELDS
+	// -------------------------------------------- //
+	
+	private final List<Predictate<T>> predictates;
+	public List<Predictate<T>> getPredictates() { return this.predictates; }
+	
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
+	
+	@Override
+	public boolean apply(T type)
+	{
+		for (Predictate<T> predictate : this.getPredictates())
+		{
+			if (!predictate.apply(type)) return false;
+		}
+		return true;
+	}
+	
+}
diff --git a/src/com/massivecraft/mcore/PredictateIsntDefaultEntity.java b/src/com/massivecraft/mcore/PredictateIsntDefaultEntity.java
new file mode 100644
index 00000000..536be52c
--- /dev/null
+++ b/src/com/massivecraft/mcore/PredictateIsntDefaultEntity.java
@@ -0,0 +1,24 @@
+package com.massivecraft.mcore;
+
+import com.massivecraft.mcore.store.Entity;
+
+public class PredictateIsntDefaultEntity implements Predictate<Entity<?>>
+{
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	
+	private static PredictateIsntDefaultEntity i = new PredictateIsntDefaultEntity();
+	public static PredictateIsntDefaultEntity get() { return i; }
+	
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
+
+	@Override
+	public boolean apply(Entity<?> entity)
+	{
+		return !entity.isDefault();
+	}
+	
+}