Java Arrays.binarySearch方法代码示例

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Gets the value of an {@link Suite#PROPERTIES_MANIFEST_RESOURCE_NAME} property embedded in the suite.
 *
 * @param name the name of the property whose value is to be retrieved
 * @return the property value
 */
String getManifestProperty(String name) {
	int index = Arrays.binarySearch(manifestProperties, name, ManifestProperty.comparer);
       if (index < 0) {
           // To support dynamic class loading we need to follow the same semantics as Klass.forName
           // which is to look to see if we can't dynamically load a property if its not found
           if (isClosed() || isPropertiesManifestResourceInstalled) {
               return null;
           }
           // The following should automatically install the properties if there is a manifest
           InputStream input = getResourceAsStream(PROPERTIES_MANIFEST_RESOURCE_NAME, null);
           if (input != null) {
               try {input.close();} catch (IOException e) {/*nothing*/};
           }
           isPropertiesManifestResourceInstalled = true;
           index = Arrays.binarySearch(manifestProperties, name, ManifestProperty.comparer);
           if (index < 0) {
               return null;
           }
       }
	return manifestProperties [index].value;
}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
	 * Installs a collection of IMlet property values into this suite.
	 *
	 * @param property IMlet property to install
	 */
	public void installProperty(ManifestProperty property) {
		checkWrite();
        // There could be more than one manifest property for a given key,
        // as is the case if JAD properties are added, so take this into account
        int index = Arrays.binarySearch(manifestProperties, property.name, ManifestProperty.comparer);
        if (index < 0) {
/*if[ENABLE_VERBOSE]*/	    	    
            if (VM.isVerbose()) {
                System.out.println("[Adding property key: |" + property.name + "| value: |" + property.value + "|]");
            }
/*end[ENABLE_VERBOSE]*/	    	    
            System.arraycopy(manifestProperties, 0, manifestProperties = new ManifestProperty[manifestProperties.length + 1], 0, manifestProperties.length - 1);
            manifestProperties[manifestProperties.length - 1] = property;
            Arrays.sort(manifestProperties, ManifestProperty.comparer);
        } else {
/*if[ENABLE_VERBOSE]*/	    	    
            if (VM.isVerbose()) {
                System.out.println("[Overwriting property key: |" + property.name + "| value: |" + property.value + "|]");
            }
/*end[ENABLE_VERBOSE]*/	    	    
            manifestProperties[index] = property;
        }
	}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Installs a collection of IMlet property values into this suite.
 *
 * @param property IMlet property to install
 */
public void installProperty(ManifestProperty property) {
	checkWrite();
       // There could be more than one manifest property for a given key,
       // as is the case if JAD properties are added, so take this into account
       int index = Arrays.binarySearch(manifestProperties, property.name, ManifestProperty.comparer);
       if (index < 0) {
           if (VM.isVerbose()) {
               System.out.println("[Adding property key: |" + property.name + "| value: |" + property.value + "|]");
           }
           System.arraycopy(manifestProperties, 0, manifestProperties = new ManifestProperty[manifestProperties.length + 1], 0, manifestProperties.length - 1);
           manifestProperties[manifestProperties.length - 1] = property;
           Arrays.sort(manifestProperties, ManifestProperty.comparer);
       } else {
           if (VM.isVerbose()) {
               System.out.println("[Overwriting property key: |" + property.name + "| value: |" + property.value + "|]");
           }
           manifestProperties[index] = property;
       }
}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Gets the <code>KlassMetadata</code> instance from this suite
 * corresponding to a specified class.
 *
 * @param    klass  a class
 * @return   the <code>KlassMetadata</code> instance corresponding to
 *                <code>klass</code> or <code>null</code> if there isn't one
 */
KlassMetadata getMetadata0(Klass klass) {
    if (metadatas != null /*&& contains(klass)*/) {
        int metaindex = Arrays.binarySearch(metadatas, klass, KlassMetadata.comparer);
        if (metaindex >= 0) {
            KlassMetadata metadata = metadatas[metaindex];
            Assert.that(metadata != null);
            Assert.that(metadata.getDefinedClass() == klass, "metadata.getDefinedClass(): " + metadata.getDefinedClass() + " klass: " + klass);
            return metadata;
        }
    }
    Assert.that(searchForMetadata(klass) == null);
    return null;
}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Gets the <code>KlassMetadata</code> instance from this suite
 * corresponding to a specified class.
 *
 * @param    klass  a class
 * @return   the <code>KlassMetadata</code> instance corresponding to
 *                <code>klass</code> or <code>null</code> if there isn't one
 */
KlassMetadata getMetadata0(Klass klass) {
    if (metadatas != null /*&& contains(klass)*/) {
        int metaindex = Arrays.binarySearch(metadatas, klass, KlassMetadata.comparer);
        if (metaindex >= 0) {
            KlassMetadata metadata = metadatas[metaindex];
            if (false) Assert.that(metadata != null);
            if (false) Assert.that(metadata.getDefinedClass() == klass, "metadata.getDefinedClass(): " + metadata.getDefinedClass() + " klass: " + klass);
            return metadata;
        }
    }
    if (false) Assert.that(searchForMetadata(klass) == null);
    return null;
}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Gets the index of the metadata for this class in this suite.
 *
 * @param    klass  a class
 * @return   the index or a negative number
 */
int getMetadataIndex(Klass klass) {
    Assert.that(metadatas != null);
    Assert.that(contains(klass) || (type == METADATA && parent.contains(klass)), this + " doesn't contain " + klass);
    return Arrays.binarySearch(metadatas, klass, KlassMetadata.comparer);
}
 

import com.sun.squawk.util.Arrays; //导入方法依赖的package包/类
/**
 * Gets the index of the metadata for this class in this suite.
 *
 * @param    klass  a class
 * @return   the index or a negative number
 */
int getMetadataIndex(Klass klass) {
    if (false) Assert.that(metadatas != null);
    if (false) Assert.that(contains(klass) || (type == METADATA && parent.contains(klass)), this + " doesn't contain " + klass);
    return Arrays.binarySearch(metadatas, klass, KlassMetadata.comparer);
}